56128000439 has 8 divisors (see below), whose sum is σ = 66358227360. Its totient is φ = 46450758816.

The previous prime is 56128000433. The next prime is 56128000463. The reversal of 56128000439 is 93400082165.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 56128000439 - 2²⁰ = 56126951863 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56128000433) 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, 138246104 + ... + 138246509.

It is an arithmetic number, because the mean of its divisors is an integer number (8294778420).

Almost surely, 2^56128000439 is an apocalyptic number.

56128000439 is a deficient number, since it is larger than the sum of its proper divisors (10230226921).

56128000439 is a wasteful number, since it uses less digits than its factorization.

56128000439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276492649.

The product of its (nonzero) digits is 51840, while the sum is 38.

The spelling of 56128000439 in words is "fifty-six billion, one hundred twenty-eight million, four hundred thirty-nine", and thus it is an aban number.