56815077108 has 72 divisors (see below), whose sum is σ = 136363127040. Its totient is φ = 18400323200.

The previous prime is 56815077107. The next prime is 56815077119. The reversal of 56815077108 is 80177051865.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56815077107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 115712743 + ... + 115713233.

It is an arithmetic number, because the mean of its divisors is an integer number (1893932320).

Almost surely, 2^56815077108 is an apocalyptic number.

It is an amenable number.

56815077108 is an abundant number, since it is smaller than the sum of its proper divisors (79548049932).

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

56815077108 is a wasteful number, since it uses less digits than its factorization.

56815077108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1509 (or 1016 counting only the distinct ones).

The product of its (nonzero) digits is 470400, while the sum is 48.

The spelling of 56815077108 in words is "fifty-six billion, eight hundred fifteen million, seventy-seven thousand, one hundred eight".