15137891650 has 48 divisors (see below), whose sum is σ = 32218545024. Its totient is φ = 5183729280.

The previous prime is 15137891609. The next prime is 15137891687. The reversal of 15137891650 is 5619873151.

It is a self number, because there is not a number n which added to its sum of digits gives 15137891650.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 261774 + ... + 314326.

It is an arithmetic number, because the mean of its divisors is an integer number (671219688).

Almost surely, 2^15137891650 is an apocalyptic number.

15137891650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

15137891650 is an abundant number, since it is smaller than the sum of its proper divisors (17080653374).

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

15137891650 is a wasteful number, since it uses less digits than its factorization.

15137891650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53395 (or 53390 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 46.

The spelling of 15137891650 in words is "fifteen billion, one hundred thirty-seven million, eight hundred ninety-one thousand, six hundred fifty".