18498723068280 has 512 divisors, whose sum is σ = 69389105909760. Its totient is φ = 3841408696320.

The previous prime is 18498723068261. The next prime is 18498723068341. The reversal of 18498723068280 is 8286032789481.

It is a congruent number.

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, 191674197 + ... + 191770683.

It is an arithmetic number, because the mean of its divisors is an integer number (135525597480).

Almost surely, 2^{18498723068280} is an apocalyptic number.

18498723068280 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 18498723068280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34694552954880).

18498723068280 is an abundant number, since it is smaller than the sum of its proper divisors (50890382841480).

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

18498723068280 is a wasteful number, since it uses less digits than its factorization.

18498723068280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96799 (or 96795 counting only the distinct ones).

The product of its (nonzero) digits is 74317824, while the sum is 66.

The spelling of 18498723068280 in words is "eighteen trillion, four hundred ninety-eight billion, seven hundred twenty-three million, sixty-eight thousand, two hundred eighty".