181004288864 has 48 divisors (see below), whose sum is σ = 413936068896. Its totient is φ = 76301568000.

The previous prime is 181004288849. The next prime is 181004288891. The reversal of 181004288864 is 468882400181.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6609737 + ... + 6637064.

It is an arithmetic number, because the mean of its divisors is an integer number (8623668102).

Almost surely, 2^181004288864 is an apocalyptic number.

181004288864 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

181004288864 is an abundant number, since it is smaller than the sum of its proper divisors (232931780032).

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

181004288864 is a wasteful number, since it uses less digits than its factorization.

181004288864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13246879 (or 13246871 counting only the distinct ones).

The product of its (nonzero) digits is 786432, while the sum is 50.

The spelling of 181004288864 in words is "one hundred eighty-one billion, four million, two hundred eighty-eight thousand, eight hundred sixty-four".