18039875982240 has 768 divisors, whose sum is σ = 69645822382080. Its totient is φ = 3833300090880.

The previous prime is 18039875982239. The next prime is 18039875982251. The reversal of 18039875982240 is 4228957893081.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1725143092 + ... + 1725153548.

It is an arithmetic number, because the mean of its divisors is an integer number (90684664560).

Almost surely, 2^{18039875982240} is an apocalyptic number.

18039875982240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18039875982240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34822911191040).

18039875982240 is an abundant number, since it is smaller than the sum of its proper divisors (51605946399840).

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

18039875982240 is a wasteful number, since it uses less digits than its factorization.

18039875982240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11005 (or 10997 counting only the distinct ones).

The product of its (nonzero) digits is 69672960, while the sum is 66.

The spelling of 18039875982240 in words is "eighteen trillion, thirty-nine billion, eight hundred seventy-five million, nine hundred eighty-two thousand, two hundred forty".