56778968832 has 144 divisors (see below), whose sum is σ = 154077635712. Its totient is φ = 18557890560.

The previous prime is 56778968759. The next prime is 56778968843. The reversal of 56778968832 is 23886987765.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11678082 + ... + 11682942.

Almost surely, 2^56778968832 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 56778968832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77038817856).

56778968832 is an abundant number, since it is smaller than the sum of its proper divisors (97298666880).

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

56778968832 is a wasteful number, since it uses less digits than its factorization.

56778968832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5174 (or 5160 counting only the distinct ones).

The product of its digits is 243855360, while the sum is 69.

The spelling of 56778968832 in words is "fifty-six billion, seven hundred seventy-eight million, nine hundred sixty-eight thousand, eight hundred thirty-two".