56774766976 has 64 divisors (see below), whose sum is σ = 116819343360. Its totient is φ = 27456422400.

The previous prime is 56774766949. The next prime is 56774766991. The reversal of 56774766976 is 67966747765.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10976871 + ... + 10982041.

It is an arithmetic number, because the mean of its divisors is an integer number (1825302240).

Almost surely, 2^56774766976 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56774766976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58409671680).

56774766976 is an abundant number, since it is smaller than the sum of its proper divisors (60044576384).

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

56774766976 is a wasteful number, since it uses less digits than its factorization.

56774766976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7983 (or 7971 counting only the distinct ones).

The product of its digits is 560105280, while the sum is 70.

The spelling of 56774766976 in words is "fifty-six billion, seven hundred seventy-four million, seven hundred sixty-six thousand, nine hundred seventy-six".