15829894128 has 80 divisors (see below), whose sum is σ = 41560839936. Its totient is φ = 5191111680.

The previous prime is 15829894123. The next prime is 15829894147. The reversal of 15829894128 is 82149892851.

15829894128 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15829894123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 951901 + ... + 968387.

Almost surely, 2^15829894128 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 15829894128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20780419968).

15829894128 is an abundant number, since it is smaller than the sum of its proper divisors (25730945808).

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

15829894128 is a wasteful number, since it uses less digits than its factorization.

15829894128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16822 (or 16816 counting only the distinct ones).

The product of its digits is 3317760, while the sum is 57.

The spelling of 15829894128 in words is "fifteen billion, eight hundred twenty-nine million, eight hundred ninety-four thousand, one hundred twenty-eight".