18328445232 has 80 divisors (see below), whose sum is σ = 47823105792. Its totient is φ = 6048518400.

The previous prime is 18328445197. The next prime is 18328445249. The reversal of 18328445232 is 23254482381.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2221018 + ... + 2229254.

Almost surely, 2^18328445232 is an apocalyptic number.

18328445232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18328445232 is an abundant number, since it is smaller than the sum of its proper divisors (29494660560).

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

18328445232 is a wasteful number, since it uses less digits than its factorization.

18328445232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8706 (or 8700 counting only the distinct ones).

The product of its digits is 368640, while the sum is 42.

The spelling of 18328445232 in words is "eighteen billion, three hundred twenty-eight million, four hundred forty-five thousand, two hundred thirty-two".