18540682032 has 40 divisors (see below), whose sum is σ = 48708578880. Its totient is φ = 6075476800.

The previous prime is 18540682031. The next prime is 18540682063. The reversal of 18540682032 is 23028604581.

It is not an unprimeable number, because it can be changed into a prime (18540682031) 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, 3270594 + ... + 3276257.

It is an arithmetic number, because the mean of its divisors is an integer number (1217714472).

Almost surely, 2^18540682032 is an apocalyptic number.

18540682032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18540682032 is an abundant number, since it is smaller than the sum of its proper divisors (30167896848).

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

18540682032 is a wasteful number, since it uses less digits than its factorization.

18540682032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6546921 (or 6546915 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 39.

The spelling of 18540682032 in words is "eighteen billion, five hundred forty million, six hundred eighty-two thousand, thirty-two".