23857563813 has 16 divisors (see below), whose sum is σ = 31928580096. Its totient is φ = 15845906160.

The previous prime is 23857563787. The next prime is 23857563859. The reversal of 23857563813 is 31836575832.

It is not a de Polignac number, because 23857563813 - 2²⁸ = 23589128357 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23857563013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 880770 + ... + 907452.

It is an arithmetic number, because the mean of its divisors is an integer number (1995536256).

Almost surely, 2^23857563813 is an apocalyptic number.

It is an amenable number.

23857563813 is a deficient number, since it is larger than the sum of its proper divisors (8071016283).

23857563813 is a wasteful number, since it uses less digits than its factorization.

23857563813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27784.

The product of its digits is 3628800, while the sum is 51.

The spelling of 23857563813 in words is "twenty-three billion, eight hundred fifty-seven million, five hundred sixty-three thousand, eight hundred thirteen".