15797828544 has 224 divisors, whose sum is σ = 45115983936. Its totient is φ = 4861132800.

The previous prime is 15797828537. The next prime is 15797828549. The reversal of 15797828544 is 44582879751.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15797828549) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 57031734 + ... + 57032010.

Almost surely, 2^15797828544 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15797828544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22557991968).

15797828544 is an abundant number, since it is smaller than the sum of its proper divisors (29318155392).

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

15797828544 is a wasteful number, since it uses less digits than its factorization.

15797828544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 583 (or 573 counting only the distinct ones).

The product of its digits is 22579200, while the sum is 60.

The spelling of 15797828544 in words is "fifteen billion, seven hundred ninety-seven million, eight hundred twenty-eight thousand, five hundred forty-four".