56396718780 has 24 divisors (see below), whose sum is σ = 157910812752. Its totient is φ = 15039124992.

The previous prime is 56396718767. The next prime is 56396718797. The reversal of 56396718780 is 8781769365.

It is a Harshad number since it is a multiple of its sum of digits (60), and also a Moran number because the ratio is a prime number: 939945313 = 56396718780 / (5 + 6 + 3 + 9 + 6 + 7 + 1 + 8 + 7 + 8 + 0).

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, 469972597 + ... + 469972716.

It is an arithmetic number, because the mean of its divisors is an integer number (6579617198).

Almost surely, 2^56396718780 is an apocalyptic number.

It is an amenable number.

56396718780 is an abundant number, since it is smaller than the sum of its proper divisors (101514093972).

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

56396718780 is a wasteful number, since it uses less digits than its factorization.

56396718780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 939945325 (or 939945323 counting only the distinct ones).

The product of its (nonzero) digits is 15240960, while the sum is 60.

The spelling of 56396718780 in words is "fifty-six billion, three hundred ninety-six million, seven hundred eighteen thousand, seven hundred eighty".