#include <bits/stdc++.h>
inline long long gcd(long long a, long long b) { return b ? gcd(b, a % b) : a; }
inline void sub(long long &a, long long b) {
  a -= b;
  if (a < 0) a += 1000000007;
}
inline void add(long long &a, long long b) {
  a += b;
  if (a >= 1000000007) a -= 1000000007;
}
template <typename T>
inline T const &MAX(T const &a, T const &b) {
  return a > b ? a : b;
}
template <typename T>
inline T const &MIN(T const &a, T const &b) {
  return a < b ? a : b;
}
inline long long qp(long long a, long long b) {
  long long ans = 1;
  while (b) {
    if (b & 1) ans = ans * a % 1000000007;
    a = a * a % 1000000007, b >>= 1;
  }
  return ans;
}
inline long long qp(long long a, long long b, long long c) {
  long long ans = 1;
  while (b) {
    if (b & 1) ans = ans * a % c;
    a = a * a % c, b >>= 1;
  }
  return ans;
}
using namespace std;
const unsigned long long ba = 233;
const double eps = 1e-6;
const long long INF = 0x3f3f3f3f3f3f3f3f;
const int N = 100000 + 10, maxn = 10000000 + 10, inf = 0x3f3f3f3f;
long long eu(long long n) {
  long long ans = n;
  for (long long i = 2; i * i <= n; i++) {
    if (n % i == 0) {
      ans = ans / i * (i - 1);
      while (n % i == 0) n /= i;
    }
  }
  if (n != 1) ans = ans / n * (n - 1);
  return ans;
}
int main() {
  long long n, k;
  scanf("%lld%lld", &n, &k);
  k = (k + 1) / 2;
  while (n != 1 && k) k--, n = eu(n);
  printf("%lld\n", n % 1000000007);
  return 0;
}
