18013388189184 has 240 divisors, whose sum is σ = 55288515089808. Its totient is φ = 5626358071296.

The previous prime is 18013388189177. The next prime is 18013388189189. The reversal of 18013388189184 is 48198188331081.

18013388189184 is a `hidden beast` number, since 1 + 80 + 1 + 3 + 388 + 18 + 91 + 84 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18013388189189) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17275774 + ... + 18288770.

Almost surely, 2^{18013388189184} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18013388189184, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27644257544904).

18013388189184 is an abundant number, since it is smaller than the sum of its proper divisors (37275126900624).

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

18013388189184 is a wasteful number, since it uses less digits than its factorization.

18013388189184 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1013265 (or 1013246 counting only the distinct ones).

The product of its (nonzero) digits is 10616832, while the sum is 63.

The spelling of 18013388189184 in words is "eighteen trillion, thirteen billion, three hundred eighty-eight million, one hundred eighty-nine thousand, one hundred eighty-four".