23638418916 has 24 divisors (see below), whose sum is σ = 63035784000. Its totient is φ = 6753833952.

The previous prime is 23638418911. The next prime is 23638418929. The reversal of 23638418916 is 61981483632.

It is not an unprimeable number, because it can be changed into a prime (23638418911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 140704791 + ... + 140704958.

It is an arithmetic number, because the mean of its divisors is an integer number (2626491000).

Almost surely, 2^23638418916 is an apocalyptic number.

It is an amenable number.

23638418916 is an abundant number, since it is smaller than the sum of its proper divisors (39397365084).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23638418916 is a wasteful number, since it uses less digits than its factorization.

23638418916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281409763 (or 281409761 counting only the distinct ones).

The product of its digits is 1492992, while the sum is 51.

The spelling of 23638418916 in words is "twenty-three billion, six hundred thirty-eight million, four hundred eighteen thousand, nine hundred sixteen".