18322431098880 has 960 divisors, whose sum is σ = 64501259655168. Its totient is φ = 4421131960320.

The previous prime is 18322431098879. The next prime is 18322431098957. The reversal of 18322431098880 is 8889013422381.

It is a tau number, because it is divible by the number of its divisors (960).

It is a super-2 number, since 2×18322431098880² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 18322431098880.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 24996494994 + ... + 24996495726.

Almost surely, 2^{18322431098880} is an apocalyptic number.

18322431098880 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 18322431098880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32250629827584).

18322431098880 is an abundant number, since it is smaller than the sum of its proper divisors (46178828556288).

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

18322431098880 is a wasteful number, since it uses less digits than its factorization.

18322431098880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1010 (or 984 counting only the distinct ones).

The product of its (nonzero) digits is 5308416, while the sum is 57.

The spelling of 18322431098880 in words is "eighteen trillion, three hundred twenty-two billion, four hundred thirty-one million, ninety-eight thousand, eight hundred eighty".