23687078631 has 32 divisors (see below), whose sum is σ = 34143724800. Its totient is φ = 14560876800.

The previous prime is 23687078621. The next prime is 23687078647. The reversal of 23687078631 is 13687078632.

It is not a de Polignac number, because 23687078631 - 2⁶ = 23687078567 is a prime.

It is a super-2 number, since 2×23687078631² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23687078621) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 304795 + ... + 374531.

It is an arithmetic number, because the mean of its divisors is an integer number (1066991400).

Almost surely, 2^23687078631 is an apocalyptic number.

23687078631 is a deficient number, since it is larger than the sum of its proper divisors (10456646169).

23687078631 is a wasteful number, since it uses less digits than its factorization.

23687078631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69919.

The product of its (nonzero) digits is 2032128, while the sum is 51.

Subtracting from 23687078631 its reverse (13687078632), we obtain a palindrome (9999999999).

The spelling of 23687078631 in words is "twenty-three billion, six hundred eighty-seven million, seventy-eight thousand, six hundred thirty-one".