23645639936 has 18 divisors (see below), whose sum is σ = 47198914602. Its totient is φ = 11822819840.

The previous prime is 23645639921. The next prime is 23645639951. The reversal of 23645639936 is 63993654632.

It is an interprime number because it is at equal distance from previous prime (23645639921) and next prime (23645639951).

It can be written as a sum of positive squares in only one way, i.e., 19978126336 + 3667513600 = 141344^2 + 60560^2 .

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 46182635 + ... + 46183146.

Almost surely, 2^23645639936 is an apocalyptic number.

It is an amenable number.

23645639936 is a deficient number, since it is larger than the sum of its proper divisors (23553274666).

23645639936 is an frugal number, since it uses more digits than its factorization.

23645639936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92365797 (or 92365783 counting only the distinct ones).

The product of its digits is 18895680, while the sum is 56.

The spelling of 23645639936 in words is "twenty-three billion, six hundred forty-five million, six hundred thirty-nine thousand, nine hundred thirty-six".