56779567512 has 64 divisors (see below), whose sum is σ = 146581017600. Its totient is φ = 18309352320.

The previous prime is 56779567501. The next prime is 56779567513. The reversal of 56779567512 is 21576597765.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56779567513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2300823 + ... + 2325369.

It is an arithmetic number, because the mean of its divisors is an integer number (2290328400).

Almost surely, 2^56779567512 is an apocalyptic number.

It is an amenable number.

56779567512 is an abundant number, since it is smaller than the sum of its proper divisors (89801450088).

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

56779567512 is a wasteful number, since it uses less digits than its factorization.

56779567512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27696 (or 27692 counting only the distinct ones).

The product of its digits is 27783000, while the sum is 60.

The spelling of 56779567512 in words is "fifty-six billion, seven hundred seventy-nine million, five hundred sixty-seven thousand, five hundred twelve".