15142865872 has 80 divisors (see below), whose sum is σ = 31933706112. Its totient is φ = 6928035840.

The previous prime is 15142865869. The next prime is 15142865891. The reversal of 15142865872 is 27856824151.

15142865872 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 an unprimeable number.

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, 3421453 + ... + 3425875.

Almost surely, 2^15142865872 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 15142865872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15966853056).

15142865872 is an abundant number, since it is smaller than the sum of its proper divisors (16790840240).

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

15142865872 is a wasteful number, since it uses less digits than its factorization.

15142865872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4796 (or 4790 counting only the distinct ones).

The product of its digits is 1075200, while the sum is 49.

The spelling of 15142865872 in words is "fifteen billion, one hundred forty-two million, eight hundred sixty-five thousand, eight hundred seventy-two".