23912421618 has 16 divisors (see below), whose sum is σ = 47851597440. Its totient is φ = 7966348176.

The previous prime is 23912421601. The next prime is 23912421619. The reversal of 23912421618 is 81612421932.

It is not an unprimeable number, because it can be changed into a prime (23912421619) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1103130 + ... + 1124597.

It is an arithmetic number, because the mean of its divisors is an integer number (2990724840).

Almost surely, 2^23912421618 is an apocalyptic number.

23912421618 is an abundant number, since it is smaller than the sum of its proper divisors (23939175822).

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

23912421618 is a wasteful number, since it uses less digits than its factorization.

23912421618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2229521.

The product of its digits is 41472, while the sum is 39.

The spelling of 23912421618 in words is "twenty-three billion, nine hundred twelve million, four hundred twenty-one thousand, six hundred eighteen".