11977574072 has 16 divisors (see below), whose sum is σ = 22473117240. Its totient is φ = 5984742816.

The previous prime is 11977574069. The next prime is 11977574101. The reversal of 11977574072 is 27047577911.

It is a super-2 number, since 2×11977574072² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11977574072.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 492923 + ... + 516650.

Almost surely, 2^11977574072 is an apocalyptic number.

It is an amenable number.

11977574072 is a deficient number, since it is larger than the sum of its proper divisors (10495543168).

11977574072 is a wasteful number, since it uses less digits than its factorization.

11977574072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1011062 (or 1011058 counting only the distinct ones).

The product of its (nonzero) digits is 864360, while the sum is 50.

The spelling of 11977574072 in words is "eleven billion, nine hundred seventy-seven million, five hundred seventy-four thousand, seventy-two".