15797277882 has 96 divisors (see below), whose sum is σ = 37420830720. Its totient is φ = 4980936240.

The previous prime is 15797277869. The next prime is 15797277893. The reversal of 15797277882 is 28877279751.

It is a super-2 number, since 2×15797277882² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10738407 + ... + 10739877.

It is an arithmetic number, because the mean of its divisors is an integer number (389800320).

Almost surely, 2^15797277882 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15797277882, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18710415360).

15797277882 is an abundant number, since it is smaller than the sum of its proper divisors (21623552838).

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

15797277882 is a wasteful number, since it uses less digits than its factorization.

15797277882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2670 (or 2658 counting only the distinct ones).

The product of its digits is 27659520, while the sum is 63.

The spelling of 15797277882 in words is "fifteen billion, seven hundred ninety-seven million, two hundred seventy-seven thousand, eight hundred eighty-two".