23531462636431 has 4 divisors (see below), whose sum is σ = 23549889781512. Its totient is φ = 23513035491352.

The previous prime is 23531462636417. The next prime is 23531462636477. The reversal of 23531462636431 is 13463626413532.

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 23531462636431 - 2²⁵ = 23531429081999 is a prime.

It is a super-2 number, since 2×23531462636431² (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 (23531462676431) 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, 9213570625 + ... + 9213573178.

It is an arithmetic number, because the mean of its divisors is an integer number (5887472445378).

Almost surely, 2^{23531462636431} is an apocalyptic number.

23531462636431 is a deficient number, since it is larger than the sum of its proper divisors (18427145081).

23531462636431 is a wasteful number, since it uses less digits than its factorization.

23531462636431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18427145080.

The product of its digits is 5598720, while the sum is 49.

The spelling of 23531462636431 in words is "twenty-three trillion, five hundred thirty-one billion, four hundred sixty-two million, six hundred thirty-six thousand, four hundred thirty-one".