18358943878704 has 960 divisors, whose sum is σ = 59327730782208. Its totient is φ = 4839943680000.

The previous prime is 18358943878661. The next prime is 18358943878733. The reversal of 18358943878704 is 40787834985381.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 73143202579 + ... + 73143202829.

Almost surely, 2^{18358943878704} 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 18358943878704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29663865391104).

18358943878704 is an abundant number, since it is smaller than the sum of its proper divisors (40968786903504).

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

18358943878704 is a wasteful number, since it uses less digits than its factorization.

18358943878704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 706 (or 687 counting only the distinct ones).

The product of its (nonzero) digits is 1300561920, while the sum is 75.

The spelling of 18358943878704 in words is "eighteen trillion, three hundred fifty-eight billion, nine hundred forty-three million, eight hundred seventy-eight thousand, seven hundred four".