18383904327900 has 72 divisors (see below), whose sum is σ = 53466363166384. Its totient is φ = 4876973568000.

The previous prime is 18383904327857. The next prime is 18383904327923. The reversal of 18383904327900 is 972340938381.

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 23 ways as a sum of consecutive naturals, for example, 158697751 + ... + 158813550.

Almost surely, 2^{18383904327900} is an apocalyptic number.

18383904327900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18383904327900 is an abundant number, since it is smaller than the sum of its proper divisors (35082458838484).

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

18383904327900 is a wasteful number, since it uses less digits than its factorization.

18383904327900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317511511 (or 317511504 counting only the distinct ones).

The product of its (nonzero) digits is 7838208, while the sum is 57.

The spelling of 18383904327900 in words is "eighteen trillion, three hundred eighty-three billion, nine hundred four million, three hundred twenty-seven thousand, nine hundred".