23177129420 has 24 divisors (see below), whose sum is σ = 49102701984. Its totient is φ = 9188807936.

The previous prime is 23177129383. The next prime is 23177129467. The reversal of 23177129420 is 2492177132.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5125424 + ... + 5129943.

It is an arithmetic number, because the mean of its divisors is an integer number (2045945916).

Almost surely, 2^23177129420 is an apocalyptic number.

23177129420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23177129420 is an abundant number, since it is smaller than the sum of its proper divisors (25925572564).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23177129420 is a wasteful number, since it uses less digits than its factorization.

23177129420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10255489 (or 10255487 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 38.

The spelling of 23177129420 in words is "twenty-three billion, one hundred seventy-seven million, one hundred twenty-nine thousand, four hundred twenty".