56973870864 has 45 divisors (see below), whose sum is σ = 159455724519. Its totient is φ = 18990335520.

The previous prime is 56973870817. The next prime is 56973870871. The reversal of 56973870864 is 46807837965.

The square root of 56973870864 is 238692.

It is a perfect power (a square), and thus also a powerful number.

56973870864 is a `hidden beast` number, since 569 + 7 + 3 + 8 + 7 + 0 + 8 + 64 = 666.

It is a super-2 number, since 2×56973870864² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2854359 + ... + 2874249.

Almost surely, 2^56973870864 is an apocalyptic number.

56973870864 is the 238692-nd square number.

It is an amenable number.

56973870864 is an abundant number, since it is smaller than the sum of its proper divisors (102481853655).

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

56973870864 is an frugal number, since it uses more digits than its factorization.

56973870864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39796 (or 19896 counting only the distinct ones).

The product of its (nonzero) digits is 60963840, while the sum is 63.

The spelling of 56973870864 in words is "fifty-six billion, nine hundred seventy-three million, eight hundred seventy thousand, eight hundred sixty-four".