56128401372 has 24 divisors (see below), whose sum is σ = 137859232000. Its totient is φ = 17724758256.

The previous prime is 56128401331. The next prime is 56128401401. The reversal of 56128401372 is 27310482165.

It is a self number, because there is not a number n which added to its sum of digits gives 56128401372.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 123088372 + ... + 123088827.

Almost surely, 2^56128401372 is an apocalyptic number.

It is an amenable number.

56128401372 is an abundant number, since it is smaller than the sum of its proper divisors (81730830628).

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

56128401372 is a wasteful number, since it uses less digits than its factorization.

56128401372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246177225 (or 246177223 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 39.

The spelling of 56128401372 in words is "fifty-six billion, one hundred twenty-eight million, four hundred one thousand, three hundred seventy-two".