15797389680 has 120 divisors (see below), whose sum is σ = 53328254928. Its totient is φ = 4190773248.

The previous prime is 15797389669. The next prime is 15797389739. The reversal of 15797389680 is 8698379751.

It is a tau number, because it is divible by the number of its divisors (120).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 82119 + ... + 195801.

Almost surely, 2^15797389680 is an apocalyptic number.

15797389680 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 15797389680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26664127464).

15797389680 is an abundant number, since it is smaller than the sum of its proper divisors (37530865248).

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

15797389680 is a wasteful number, since it uses less digits than its factorization.

15797389680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113895 (or 113886 counting only the distinct ones).

The product of its (nonzero) digits is 22861440, while the sum is 63.

The spelling of 15797389680 in words is "fifteen billion, seven hundred ninety-seven million, three hundred eighty-nine thousand, six hundred eighty".