56787617405 has 8 divisors (see below), whose sum is σ = 68167008000. Its totient is φ = 45415515856.

The previous prime is 56787617339. The next prime is 56787617417. The reversal of 56787617405 is 50471678765.

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

It is a cyclic number.

It is not a de Polignac number, because 56787617405 - 2²² = 56783423101 is a prime.

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, 1805105 + ... + 1836294.

It is an arithmetic number, because the mean of its divisors is an integer number (8520876000).

Almost surely, 2^56787617405 is an apocalyptic number.

It is an amenable number.

56787617405 is a deficient number, since it is larger than the sum of its proper divisors (11379390595).

56787617405 is a wasteful number, since it uses less digits than its factorization.

56787617405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3644523.

The product of its (nonzero) digits is 9878400, while the sum is 56.

The spelling of 56787617405 in words is "fifty-six billion, seven hundred eighty-seven million, six hundred seventeen thousand, four hundred five".