23813138775 has 48 divisors (see below), whose sum is σ = 40384657280. Its totient is φ = 12374812800.

The previous prime is 23813138743. The next prime is 23813138801. The reversal of 23813138775 is 57783131832.

It is not a de Polignac number, because 23813138775 - 2⁵ = 23813138743 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1348956 + ... + 1366494.

Almost surely, 2^23813138775 is an apocalyptic number.

23813138775 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

23813138775 is a deficient number, since it is larger than the sum of its proper divisors (16571518505).

23813138775 is a wasteful number, since it uses less digits than its factorization.

23813138775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18016 (or 18011 counting only the distinct ones).

The product of its digits is 846720, while the sum is 48.

The spelling of 23813138775 in words is "twenty-three billion, eight hundred thirteen million, one hundred thirty-eight thousand, seven hundred seventy-five".