56728913734344 has 32 divisors (see below), whose sum is σ = 145655319049920. Its totient is φ = 18398566616256.

The previous prime is 56728913734331. The next prime is 56728913734459. The reversal of 56728913734344 is 44343731982765.

It is a super-2 number, since 2×56728913734344² (a number of 28 digits) contains 22 as substring.

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, 31941955044 + ... + 31941956819.

It is an arithmetic number, because the mean of its divisors is an integer number (4551728720310).

Almost surely, 2^{56728913734344} is an apocalyptic number.

It is an amenable number.

56728913734344 is an abundant number, since it is smaller than the sum of its proper divisors (88926405315576).

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

56728913734344 is a wasteful number, since it uses less digits than its factorization.

56728913734344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63883911909 (or 63883911905 counting only the distinct ones).

The product of its digits is 365783040, while the sum is 66.

The spelling of 56728913734344 in words is "fifty-six trillion, seven hundred twenty-eight billion, nine hundred thirteen million, seven hundred thirty-four thousand, three hundred forty-four".