23891125617 has 24 divisors (see below), whose sum is σ = 35569205568. Its totient is φ = 15445634400.

The previous prime is 23891125579. The next prime is 23891125637. The reversal of 23891125617 is 71652119832.

23891125617 is a `hidden beast` number, since 2 + 3 + 8 + 9 + 1 + 1 + 25 + 617 = 666.

It is not a de Polignac number, because 23891125617 - 2²⁶ = 23824016753 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23891125637) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 267483 + ... + 345440.

It is an arithmetic number, because the mean of its divisors is an integer number (1482050232).

Almost surely, 2^23891125617 is an apocalyptic number.

It is an amenable number.

23891125617 is a deficient number, since it is larger than the sum of its proper divisors (11678079951).

23891125617 is a wasteful number, since it uses less digits than its factorization.

23891125617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 613061 (or 613058 counting only the distinct ones).

The product of its digits is 181440, while the sum is 45.

The spelling of 23891125617 in words is "twenty-three billion, eight hundred ninety-one million, one hundred twenty-five thousand, six hundred seventeen".