23177320472979 has 8 divisors (see below), whose sum is σ = 34336771071120. Its totient is φ = 15451546981968.

The previous prime is 23177320472939. The next prime is 23177320472989. The reversal of 23177320472979 is 97927402377132.

23177320472979 is a `hidden beast` number, since 2 + 3 + 1 + 7 + 73 + 2 + 0 + 472 + 97 + 9 = 666.

It is not a de Polignac number, because 23177320472979 - 2⁸ = 23177320472723 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23177320472939) 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, 429209638362 + ... + 429209638415.

It is an arithmetic number, because the mean of its divisors is an integer number (4292096383890).

Almost surely, 2^{23177320472979} is an apocalyptic number.

23177320472979 is a deficient number, since it is larger than the sum of its proper divisors (11159450598141).

23177320472979 is an equidigital number, since it uses as much as digits as its factorization.

23177320472979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 858419276786 (or 858419276780 counting only the distinct ones).

The product of its (nonzero) digits is 56010528, while the sum is 63.

The spelling of 23177320472979 in words is "twenty-three trillion, one hundred seventy-seven billion, three hundred twenty million, four hundred seventy-two thousand, nine hundred seventy-nine".