18326045232 has 320 divisors, whose sum is σ = 59387627520. Its totient is φ = 5429825280.

The previous prime is 18326045209. The next prime is 18326045299. The reversal of 18326045232 is 23254062381.

18326045232 is a `hidden beast` number, since 18 + 3 + 2 + 604 + 5 + 2 + 32 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 18090358 + ... + 18091370.

It is an arithmetic number, because the mean of its divisors is an integer number (185586336).

Almost surely, 2^18326045232 is an apocalyptic number.

18326045232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18326045232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29693813760).

18326045232 is an abundant number, since it is smaller than the sum of its proper divisors (41061582288).

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

18326045232 is a wasteful number, since it uses less digits than its factorization.

18326045232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1100 (or 1076 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The spelling of 18326045232 in words is "eighteen billion, three hundred twenty-six million, forty-five thousand, two hundred thirty-two".