56861775172 has 48 divisors (see below), whose sum is σ = 106389803520. Its totient is φ = 26532576000.

The previous prime is 56861775167. The next prime is 56861775211. The reversal of 56861775172 is 27157716865.

It is a super-2 number, since 2×56861775172² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3072547 + ... + 3090997.

It is an arithmetic number, because the mean of its divisors is an integer number (2216454240).

Almost surely, 2^56861775172 is an apocalyptic number.

It is an amenable number.

56861775172 is a deficient number, since it is larger than the sum of its proper divisors (49528028348).

56861775172 is a wasteful number, since it uses less digits than its factorization.

56861775172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19372 (or 19370 counting only the distinct ones).

The product of its digits is 4939200, while the sum is 55.

The spelling of 56861775172 in words is "fifty-six billion, eight hundred sixty-one million, seven hundred seventy-five thousand, one hundred seventy-two".