23173726510631 has 4 divisors (see below), whose sum is σ = 24393396327000. Its totient is φ = 21954056694264.

The previous prime is 23173726510621. The next prime is 23173726510637. The reversal of 23173726510631 is 13601562737132.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23173726510631 is a prime.

It is a super-2 number, since 2×23173726510631² (a number of 28 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 (23173726510637) 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, 609834908156 + ... + 609834908193.

It is an arithmetic number, because the mean of its divisors is an integer number (6098349081750).

Almost surely, 2^{23173726510631} is an apocalyptic number.

23173726510631 is a deficient number, since it is larger than the sum of its proper divisors (1219669816369).

23173726510631 is a wasteful number, since it uses less digits than its factorization.

23173726510631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1219669816368.

The product of its (nonzero) digits is 952560, while the sum is 47.

The spelling of 23173726510631 in words is "twenty-three trillion, one hundred seventy-three billion, seven hundred twenty-six million, five hundred ten thousand, six hundred thirty-one".