500921166879 has 96 divisors (see below), whose sum is σ = 876932725760. Its totient is φ = 269158464000.

The previous prime is 500921166869. The next prime is 500921166883. The reversal of 500921166879 is 978661129005.

500921166879 is a `hidden beast` number, since 500 + 9 + 2 + 1 + 1 + 6 + 68 + 79 = 666.

500921166879 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 500921166879 - 2⁸ = 500921166623 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (500921166829) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 130208934 + ... + 130212780.

Almost surely, 2^500921166879 is an apocalyptic number.

500921166879 is a deficient number, since it is larger than the sum of its proper divisors (376011558881).

500921166879 is a wasteful number, since it uses less digits than its factorization.

500921166879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4661 (or 4658 counting only the distinct ones).

The product of its (nonzero) digits is 1632960, while the sum is 54.

The spelling of 500921166879 in words is "five hundred billion, nine hundred twenty-one million, one hundred sixty-six thousand, eight hundred seventy-nine".