15444230872 has 32 divisors (see below), whose sum is σ = 33108210720. Its totient is φ = 6616270080.

The previous prime is 15444230861. The next prime is 15444230881. The reversal of 15444230872 is 27803244451.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86478 + ... + 195874.

It is an arithmetic number, because the mean of its divisors is an integer number (1034631585).

Almost surely, 2^15444230872 is an apocalyptic number.

It is an amenable number.

15444230872 is an abundant number, since it is smaller than the sum of its proper divisors (17663979848).

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

15444230872 is a wasteful number, since it uses less digits than its factorization.

15444230872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111931 (or 111927 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 40.

The spelling of 15444230872 in words is "fifteen billion, four hundred forty-four million, two hundred thirty thousand, eight hundred seventy-two".