15788944896 has 160 divisors (see below), whose sum is σ = 42663617568. Its totient is φ = 5188485120.

The previous prime is 15788944891. The next prime is 15788944949. The reversal of 15788944896 is 69844988751.

It is a self number, because there is not a number n which added to its sum of digits gives 15788944896.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15788944891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56188276 + ... + 56188556.

Almost surely, 2^15788944896 is an apocalyptic number.

15788944896 is a gapful number since it is divisible by the number (16) 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 15788944896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21331808784).

15788944896 is an abundant number, since it is smaller than the sum of its proper divisors (26874672672).

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

15788944896 is a wasteful number, since it uses less digits than its factorization.

15788944896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 692 (or 676 counting only the distinct ones).

The product of its digits is 139345920, while the sum is 69.

The spelling of 15788944896 in words is "fifteen billion, seven hundred eighty-eight million, nine hundred forty-four thousand, eight hundred ninety-six".