18007983881136 has 120 divisors (see below), whose sum is σ = 52268553390144. Its totient is φ = 6002128226880.

The previous prime is 18007983881119. The next prime is 18007983881159. The reversal of 18007983881136 is 63118838970081.

18007983881136 is a `hidden beast` number, since 180 + 0 + 79 + 8 + 388 + 1 + 1 + 3 + 6 = 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, 44850391 + ... + 45250121.

Almost surely, 2^{18007983881136} is an apocalyptic number.

18007983881136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

18007983881136 is an abundant number, since it is smaller than the sum of its proper divisors (34260569509008).

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

18007983881136 is a wasteful number, since it uses less digits than its factorization.

18007983881136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411341 (or 411323 counting only the distinct ones).

The product of its (nonzero) digits is 13934592, while the sum is 63.

The spelling of 18007983881136 in words is "eighteen trillion, seven billion, nine hundred eighty-three million, eight hundred eighty-one thousand, one hundred thirty-six".