56612772318 has 16 divisors (see below), whose sum is σ = 113320467216. Its totient is φ = 18855103680.

The previous prime is 56612772313. The next prime is 56612772319. The reversal of 56612772318 is 81327721665.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56612772313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3947353 + ... + 3961668.

It is an arithmetic number, because the mean of its divisors is an integer number (7082529201).

Almost surely, 2^56612772318 is an apocalyptic number.

56612772318 is an abundant number, since it is smaller than the sum of its proper divisors (56707694898).

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

56612772318 is a wasteful number, since it uses less digits than its factorization.

56612772318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7910219.

The product of its digits is 846720, while the sum is 48.

The spelling of 56612772318 in words is "fifty-six billion, six hundred twelve million, seven hundred seventy-two thousand, three hundred eighteen".