18232907384 has 16 divisors (see below), whose sum is σ = 34619445600. Its totient is φ = 9001055232.

The previous prime is 18232907383. The next prime is 18232907387. The reversal of 18232907384 is 48370923281.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18232907383) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14424137 + ... + 14425400.

It is an arithmetic number, because the mean of its divisors is an integer number (2163715350).

Almost surely, 2^18232907384 is an apocalyptic number.

It is an amenable number.

18232907384 is a deficient number, since it is larger than the sum of its proper divisors (16386538216).

18232907384 is a wasteful number, since it uses less digits than its factorization.

18232907384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28849622 (or 28849618 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 47.

The spelling of 18232907384 in words is "eighteen billion, two hundred thirty-two million, nine hundred seven thousand, three hundred eighty-four".