18057363732 has 18 divisors (see below), whose sum is σ = 45645002858. Its totient is φ = 6019121232.

The previous prime is 18057363691. The next prime is 18057363743. The reversal of 18057363732 is 23736375081.

18057363732 is a `hidden beast` number, since 1 + 8 + 0 + 5 + 7 + 3 + 637 + 3 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 15256202256 + 2801161476 = 123516^2 + 52926^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 250796683 + ... + 250796754.

Almost surely, 2^18057363732 is an apocalyptic number.

18057363732 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18057363732 is an abundant number, since it is smaller than the sum of its proper divisors (27587639126).

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

18057363732 is a wasteful number, since it uses less digits than its factorization.

18057363732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 501593447 (or 501593442 counting only the distinct ones).

The product of its (nonzero) digits is 635040, while the sum is 45.

The spelling of 18057363732 in words is "eighteen billion, fifty-seven million, three hundred sixty-three thousand, seven hundred thirty-two".