23735642164 has 24 divisors (see below), whose sum is σ = 44860764200. Its totient is φ = 10923513984.

The previous prime is 23735642123. The next prime is 23735642167. The reversal of 23735642164 is 46124653732.

It can be written as a sum of positive squares in 4 ways, for example, as 9352437264 + 14383204900 = 96708^2 + 119930^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 23735642164.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23735642167) 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, 635799 + ... + 672094.

Almost surely, 2^23735642164 is an apocalyptic number.

It is an amenable number.

23735642164 is a deficient number, since it is larger than the sum of its proper divisors (21125122036).

23735642164 is a wasteful number, since it uses less digits than its factorization.

23735642164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1308259 (or 1308257 counting only the distinct ones).

The product of its digits is 725760, while the sum is 43.

The spelling of 23735642164 in words is "twenty-three billion, seven hundred thirty-five million, six hundred forty-two thousand, one hundred sixty-four".