56864013568 has 72 divisors (see below), whose sum is σ = 119663183808. Its totient is φ = 26915192832.

The previous prime is 56864013559. The next prime is 56864013581. The reversal of 56864013568 is 86531046865.

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, 521355 + ... + 620917.

It is an arithmetic number, because the mean of its divisors is an integer number (1661988664).

Almost surely, 2^56864013568 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 56864013568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59831591904).

56864013568 is an abundant number, since it is smaller than the sum of its proper divisors (62799170240).

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

56864013568 is an equidigital number, since it uses as much as digits as its factorization.

56864013568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99699 (or 99685 counting only the distinct ones).

The product of its (nonzero) digits is 4147200, while the sum is 52.

The spelling of 56864013568 in words is "fifty-six billion, eight hundred sixty-four million, thirteen thousand, five hundred sixty-eight".