56936370881 has 32 divisors (see below), whose sum is σ = 65276467200. Its totient is φ = 49227912000.

The previous prime is 56936370877. The next prime is 56936370889. The reversal of 56936370881 is 18807363965.

It is a cyclic number.

It is not a de Polignac number, because 56936370881 - 2² = 56936370877 is a prime.

It is a super-2 number, since 2×56936370881² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56936370889) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8614280 + ... + 8620886.

It is an arithmetic number, because the mean of its divisors is an integer number (2039889600).

Almost surely, 2^56936370881 is an apocalyptic number.

It is an amenable number.

56936370881 is a deficient number, since it is larger than the sum of its proper divisors (8340096319).

56936370881 is a wasteful number, since it uses less digits than its factorization.

56936370881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7029.

The product of its (nonzero) digits is 6531840, while the sum is 56.

The spelling of 56936370881 in words is "fifty-six billion, nine hundred thirty-six million, three hundred seventy thousand, eight hundred eighty-one".