23922718838 has 4 divisors (see below), whose sum is σ = 35884078260. Its totient is φ = 11961359418.

The previous prime is 23922718783. The next prime is 23922718861. The reversal of 23922718838 is 83881722932.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 23922718838.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5980679708 + ... + 5980679711.

It is an arithmetic number, because the mean of its divisors is an integer number (8971019565).

Almost surely, 2^23922718838 is an apocalyptic number.

23922718838 is a deficient number, since it is larger than the sum of its proper divisors (11961359422).

23922718838 is a wasteful number, since it uses less digits than its factorization.

23922718838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11961359421.

The product of its digits is 2322432, while the sum is 53.

The spelling of 23922718838 in words is "twenty-three billion, nine hundred twenty-two million, seven hundred eighteen thousand, eight hundred thirty-eight".