56688322728 has 32 divisors (see below), whose sum is σ = 142802652960. Its totient is φ = 18751861440.

The previous prime is 56688322703. The next prime is 56688322729. The reversal of 56688322728 is 82722388665.

It is not an unprimeable number, because it can be changed into a prime (56688322729) 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, 9012175 + ... + 9018462.

It is an arithmetic number, because the mean of its divisors is an integer number (4462582905).

Almost surely, 2^56688322728 is an apocalyptic number.

It is an amenable number.

56688322728 is an abundant number, since it is smaller than the sum of its proper divisors (86114330232).

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

56688322728 is a wasteful number, since it uses less digits than its factorization.

56688322728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18030777 (or 18030773 counting only the distinct ones).

The product of its digits is 15482880, while the sum is 57.

The spelling of 56688322728 in words is "fifty-six billion, six hundred eighty-eight million, three hundred twenty-two thousand, seven hundred twenty-eight".