18219709322304 has 168 divisors, whose sum is σ = 57885660695808. Its totient is φ = 5037707566080.

The previous prime is 18219709322197. The next prime is 18219709322359. The reversal of 18219709322304 is 40322390791281.

It is a tau number, because it is divible by the number of its divisors (168).

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

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, 30944139 + ... + 31527434.

Almost surely, 2^{18219709322304} is an apocalyptic number.

18219709322304 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

18219709322304 is an abundant number, since it is smaller than the sum of its proper divisors (39665951373504).

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

18219709322304 is a wasteful number, since it uses less digits than its factorization.

18219709322304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62471633 (or 62471616 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 51.

The spelling of 18219709322304 in words is "eighteen trillion, two hundred nineteen billion, seven hundred nine million, three hundred twenty-two thousand, three hundred four".