15128873115 has 16 divisors (see below), whose sum is σ = 24987042816. Its totient is φ = 7808450400.

The previous prime is 15128873113. The next prime is 15128873143. The reversal of 15128873115 is 51137882151.

It is not a de Polignac number, because 15128873115 - 2¹ = 15128873113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (15128873113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16267141 + ... + 16268070.

It is an arithmetic number, because the mean of its divisors is an integer number (1561690176).

Almost surely, 2^15128873115 is an apocalyptic number.

15128873115 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

15128873115 is a deficient number, since it is larger than the sum of its proper divisors (9858169701).

15128873115 is a wasteful number, since it uses less digits than its factorization.

15128873115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32535250.

The product of its digits is 67200, while the sum is 42.

The spelling of 15128873115 in words is "fifteen billion, one hundred twenty-eight million, eight hundred seventy-three thousand, one hundred fifteen".