23942178564 has 24 divisors (see below), whose sum is σ = 55875015168. Its totient is φ = 7979307360.

The previous prime is 23942178563. The next prime is 23942178629. The reversal of 23942178564 is 46587124932.

It is a super-2 number, since 2×23942178564² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23942178563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105892 + ... + 243099.

It is an arithmetic number, because the mean of its divisors is an integer number (2328125632).

Almost surely, 2^23942178564 is an apocalyptic number.

It is an amenable number.

23942178564 is an abundant number, since it is smaller than the sum of its proper divisors (31932836604).

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

23942178564 is a wasteful number, since it uses less digits than its factorization.

23942178564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354715 (or 354713 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 51.

The spelling of 23942178564 in words is "twenty-three billion, nine hundred forty-two million, one hundred seventy-eight thousand, five hundred sixty-four".