18144289180 has 24 divisors (see below), whose sum is σ = 38106730368. Its totient is φ = 7257006528.

The previous prime is 18144289139. The next prime is 18144289283. The reversal of 18144289180 is 8198244181.

It is a self number, because there is not a number n which added to its sum of digits gives 18144289180.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 197722 + ... + 274558.

It is an arithmetic number, because the mean of its divisors is an integer number (1587780432).

Almost surely, 2^18144289180 is an apocalyptic number.

18144289180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18144289180 is an abundant number, since it is smaller than the sum of its proper divisors (19962441188).

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

18144289180 is a wasteful number, since it uses less digits than its factorization.

18144289180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88653 (or 88651 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 46.

The spelling of 18144289180 in words is "eighteen billion, one hundred forty-four million, two hundred eighty-nine thousand, one hundred eighty".