23931775238 has 16 divisors (see below), whose sum is σ = 41118520320. Its totient is φ = 10233320136.

The previous prime is 23931775213. The next prime is 23931775249. The reversal of 23931775238 is 83257713932.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1923158 + ... + 1935561.

It is an arithmetic number, because the mean of its divisors is an integer number (2569907520).

Almost surely, 2^23931775238 is an apocalyptic number.

23931775238 is a deficient number, since it is larger than the sum of its proper divisors (17186745082).

23931775238 is a wasteful number, since it uses less digits than its factorization.

23931775238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3859171.

The product of its digits is 1905120, while the sum is 50.

The spelling of 23931775238 in words is "twenty-three billion, nine hundred thirty-one million, seven hundred seventy-five thousand, two hundred thirty-eight".