15123119872 has 36 divisors (see below), whose sum is σ = 34499621296. Its totient is φ = 6481336320.

The previous prime is 15123119857. The next prime is 15123119881. The reversal of 15123119872 is 27891132151.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4217829 + ... + 4221412.

Almost surely, 2^15123119872 is an apocalyptic number.

It is an amenable number.

15123119872 is an abundant number, since it is smaller than the sum of its proper divisors (19376501424).

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

15123119872 is an frugal number, since it uses more digits than its factorization.

15123119872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8439264 (or 8439250 counting only the distinct ones).

The product of its digits is 30240, while the sum is 40.

The spelling of 15123119872 in words is "fifteen billion, one hundred twenty-three million, one hundred nineteen thousand, eight hundred seventy-two".