15001927798980 has 192 divisors, whose sum is σ = 43433291317248. Its totient is φ = 3867467627520.

The previous prime is 15001927798969. The next prime is 15001927798999. The reversal of 15001927798980 is 8989772910051.

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, 46007115 + ... + 46332045.

It is an arithmetic number, because the mean of its divisors is an integer number (226215058944).

Almost surely, 2^{15001927798980} is an apocalyptic number.

15001927798980 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 15001927798980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21716645658624).

15001927798980 is an abundant number, since it is smaller than the sum of its proper divisors (28431363518268).

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

15001927798980 is a wasteful number, since it uses less digits than its factorization.

15001927798980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325226 (or 325224 counting only the distinct ones).

The product of its (nonzero) digits is 22861440, while the sum is 66.

The spelling of 15001927798980 in words is "fifteen trillion, one billion, nine hundred twenty-seven million, seven hundred ninety-eight thousand, nine hundred eighty".