56878812717 has 8 divisors (see below), whose sum is σ = 76038519840. Its totient is φ = 37819157040.

The previous prime is 56878812713. The next prime is 56878812751. The reversal of 56878812717 is 71721887865.

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

It is not a de Polignac number, because 56878812717 - 2² = 56878812713 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56878812713) 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, 25011534 + ... + 25013807.

It is an arithmetic number, because the mean of its divisors is an integer number (9504814980).

Almost surely, 2^56878812717 is an apocalyptic number.

It is an amenable number.

56878812717 is a deficient number, since it is larger than the sum of its proper divisors (19159707123).

56878812717 is a wasteful number, since it uses less digits than its factorization.

56878812717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50025723.

The product of its digits is 10536960, while the sum is 60.

The spelling of 56878812717 in words is "fifty-six billion, eight hundred seventy-eight million, eight hundred twelve thousand, seven hundred seventeen".