23457656631 has 16 divisors (see below), whose sum is σ = 32582021120. Its totient is φ = 14995121760.

The previous prime is 23457656609. The next prime is 23457656639. The reversal of 23457656631 is 13665675432.

It is not a de Polignac number, because 23457656631 - 2¹³ = 23457648439 is a prime.

It is a super-2 number, since 2×23457656631² (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 (23457656639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1146895 + ... + 1167168.

It is an arithmetic number, because the mean of its divisors is an integer number (2036376320).

Almost surely, 2^23457656631 is an apocalyptic number.

23457656631 is a deficient number, since it is larger than the sum of its proper divisors (9124364489).

23457656631 is a wasteful number, since it uses less digits than its factorization.

23457656631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2314206.

The product of its digits is 2721600, while the sum is 48.

The spelling of 23457656631 in words is "twenty-three billion, four hundred fifty-seven million, six hundred fifty-six thousand, six hundred thirty-one".