18325582193984 has 224 divisors, whose sum is σ = 39896932647936. Its totient is φ = 8301065379840.

The previous prime is 18325582193977. The next prime is 18325582194011. The reversal of 18325582193984 is 48939128552381.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4916977529 + ... + 4916981255.

It is an arithmetic number, because the mean of its divisors is an integer number (178111306464).

Almost surely, 2^{18325582193984} 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 18325582193984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19948466323968).

18325582193984 is an abundant number, since it is smaller than the sum of its proper divisors (21571350453952).

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

18325582193984 is a wasteful number, since it uses less digits than its factorization.

18325582193984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4353 (or 4343 counting only the distinct ones).

The product of its digits is 149299200, while the sum is 68.

The spelling of 18325582193984 in words is "eighteen trillion, three hundred twenty-five billion, five hundred eighty-two million, one hundred ninety-three thousand, nine hundred eighty-four".