979578875979 has 24 divisors (see below), whose sum is σ = 1543795027632. Its totient is φ = 593601016320.

The previous prime is 979578875959. The next prime is 979578876007.

979578875979 is a `hidden beast` number, since 9 + 7 + 9 + 5 + 7 + 8 + 8 + 7 + 597 + 9 = 666.

979578875979 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 979578875979 - 2¹² = 979578871883 is a prime.

It is not an unprimeable number, because it can be changed into a prime (979578875909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21187 + ... + 1399859.

It is an arithmetic number, because the mean of its divisors is an integer number (64324792818).

Almost surely, 2^979578875979 is an apocalyptic number.

979578875979 is a gapful number since it is divisible by the number (99) formed by its first and last digit.

979578875979 is a deficient number, since it is larger than the sum of its proper divisors (564216151653).

979578875979 is a wasteful number, since it uses less digits than its factorization.

979578875979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1385867 (or 1385864 counting only the distinct ones).

The product of its digits is 25204737600, while the sum is 90.

The spelling of 979578875979 in words is "nine hundred seventy-nine billion, five hundred seventy-eight million, eight hundred seventy-five thousand, nine hundred seventy-nine".