23870686831 has 4 divisors (see below), whose sum is σ = 23925815872. Its totient is φ = 23815557792.

The previous prime is 23870686811. The next prime is 23870686837. The reversal of 23870686831 is 13868607832.

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

It is a cyclic number.

It is not a de Polignac number, because 23870686831 - 2¹⁷ = 23870555759 is a prime.

It is a super-2 number, since 2×23870686831² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23870686837) 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, 27563871 + ... + 27564736.

It is an arithmetic number, because the mean of its divisors is an integer number (5981453968).

Almost surely, 2^23870686831 is an apocalyptic number.

23870686831 is a deficient number, since it is larger than the sum of its proper divisors (55129041).

23870686831 is an equidigital number, since it uses as much as digits as its factorization.

23870686831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55129040.

The product of its (nonzero) digits is 2322432, while the sum is 52.

The spelling of 23870686831 in words is "twenty-three billion, eight hundred seventy million, six hundred eighty-six thousand, eight hundred thirty-one".