CREATE TABLE table_18600760_7 (ansi_code NUMBER, pop__2010_ VARCHAR2)

If the population is 1858, what is the maximum ansi code?
SELECT MAX(ansi_code) FROM table_18600760_7 WHERE pop__2010_ = 1858
SELECT MAX("ansi_code") FROM "table_18600760_7" WHERE "pop__2010_" = 1858