56878759309 has 8 divisors (see below), whose sum is σ = 60203168480. Its totient is φ = 53587429200.

The previous prime is 56878759277. The next prime is 56878759319. The reversal of 56878759309 is 90395787865.

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 56878759309 - 2⁵ = 56878759277 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 (56878759319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8266227 + ... + 8273104.

It is an arithmetic number, because the mean of its divisors is an integer number (7525396060).

Almost surely, 2^56878759309 is an apocalyptic number.

It is an amenable number.

56878759309 is a deficient number, since it is larger than the sum of its proper divisors (3324409171).

56878759309 is a wasteful number, since it uses less digits than its factorization.

56878759309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16539531.

The product of its (nonzero) digits is 114307200, while the sum is 67.

The spelling of 56878759309 in words is "fifty-six billion, eight hundred seventy-eight million, seven hundred fifty-nine thousand, three hundred nine".