18358040598980 has 72 divisors (see below), whose sum is σ = 39672557991360. Its totient is φ = 7135567840000.

The previous prime is 18358040598949. The next prime is 18358040599007. The reversal of 18358040598980 is 8989504085381.

It is a self number, because there is not a number n which added to its sum of digits gives 18358040598980.

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, 7350881 + ... + 9526359.

It is an arithmetic number, because the mean of its divisors is an integer number (551007749880).

Almost surely, 2^{18358040598980} is an apocalyptic number.

18358040598980 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 18358040598980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19836278995680).

18358040598980 is an abundant number, since it is smaller than the sum of its proper divisors (21314517392380).

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

18358040598980 is a wasteful number, since it uses less digits than its factorization.

18358040598980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2175821 (or 2175778 counting only the distinct ones).

The product of its (nonzero) digits is 99532800, while the sum is 68.

The spelling of 18358040598980 in words is "eighteen trillion, three hundred fifty-eight billion, forty million, five hundred ninety-eight thousand, nine hundred eighty".