In this task you will be given a list of numbers. You should remove any number that is not an integer (whole number). If every number is not an whole number then an empty list ("[]") should be returned. Otherwise, answer with the list of whole numbers separated by comma inside brackets.
[11.37, -52, 63, -11.49, 43, -9.586, -3.612, 28.46, 57.919, 31, -2.77]