11427537564 has 96 divisors (see below), whose sum is σ = 32381798400. Its totient is φ = 3469443840.

The previous prime is 11427537521. The next prime is 11427537577. The reversal of 11427537564 is 46573572411.

11427537564 is a `hidden beast` number, since 1 + 1 + 4 + 275 + 375 + 6 + 4 = 666.

It is a super-2 number, since 2×11427537564² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43474 + ... + 157305.

It is an arithmetic number, because the mean of its divisors is an integer number (337310400).

Almost surely, 2^11427537564 is an apocalyptic number.

It is an amenable number.

11427537564 is an abundant number, since it is smaller than the sum of its proper divisors (20954260836).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11427537564 is a wasteful number, since it uses less digits than its factorization.

11427537564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200840 (or 200832 counting only the distinct ones).

The product of its digits is 705600, while the sum is 45.

The spelling of 11427537564 in words is "eleven billion, four hundred twenty-seven million, five hundred thirty-seven thousand, five hundred sixty-four".