18040019801832 has 96 divisors (see below), whose sum is σ = 56088552199680. Its totient is φ = 5131177925760.

The previous prime is 18040019801701. The next prime is 18040019801849. The reversal of 18040019801832 is 23810891004081.

18040019801832 is a `hidden beast` number, since 1 + 80 + 400 + 1 + 98 + 0 + 1 + 83 + 2 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 80142519 + ... + 80367302.

It is an arithmetic number, because the mean of its divisors is an integer number (584255752080).

Almost surely, 2^{18040019801832} is an apocalyptic number.

18040019801832 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18040019801832 is an abundant number, since it is smaller than the sum of its proper divisors (38048532397848).

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

18040019801832 is a wasteful number, since it uses less digits than its factorization.

18040019801832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160510063 (or 160510056 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 45.

The spelling of 18040019801832 in words is "eighteen trillion, forty billion, nineteen million, eight hundred one thousand, eight hundred thirty-two".