15137621128 has 32 divisors (see below), whose sum is σ = 32458440960. Its totient is φ = 6483415680.

The previous prime is 15137621113. The next prime is 15137621141. The reversal of 15137621128 is 82112673151.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3268 + ... + 174028.

It is an arithmetic number, because the mean of its divisors is an integer number (1014326280).

Almost surely, 2^15137621128 is an apocalyptic number.

It is an amenable number.

15137621128 is an abundant number, since it is smaller than the sum of its proper divisors (17320819832).

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

15137621128 is a wasteful number, since it uses less digits than its factorization.

15137621128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172357 (or 172353 counting only the distinct ones).

The product of its digits is 20160, while the sum is 37.

The spelling of 15137621128 in words is "fifteen billion, one hundred thirty-seven million, six hundred twenty-one thousand, one hundred twenty-eight".