23852861931 has 4 divisors (see below), whose sum is σ = 31803815912. Its totient is φ = 15901907952.

The previous prime is 23852861899. The next prime is 23852861933. The reversal of 23852861931 is 13916825832.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 23852861931 - 2⁵ = 23852861899 is a prime.

It is a super-2 number, since 2×23852861931² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23852861933) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3975476986 + ... + 3975476991.

It is an arithmetic number, because the mean of its divisors is an integer number (7950953978).

Almost surely, 2^23852861931 is an apocalyptic number.

23852861931 is a deficient number, since it is larger than the sum of its proper divisors (7950953981).

23852861931 is an equidigital number, since it uses as much as digits as its factorization.

23852861931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7950953980.

The product of its digits is 622080, while the sum is 48.

The spelling of 23852861931 in words is "twenty-three billion, eight hundred fifty-two million, eight hundred sixty-one thousand, nine hundred thirty-one".