15728572873 has 32 divisors (see below), whose sum is σ = 18381033216. Its totient is φ = 13328713728.

The previous prime is 15728572829. The next prime is 15728572883. The reversal of 15728572873 is 37827582751.

It is not a de Polignac number, because 15728572873 - 2²⁵ = 15695018441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (15728572813) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1519965 + ... + 1530277.

It is an arithmetic number, because the mean of its divisors is an integer number (574407288).

Almost surely, 2^15728572873 is an apocalyptic number.

15728572873 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

15728572873 is a deficient number, since it is larger than the sum of its proper divisors (2652460343).

15728572873 is a wasteful number, since it uses less digits than its factorization.

15728572873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10513.

The product of its digits is 6585600, while the sum is 55.

The spelling of 15728572873 in words is "fifteen billion, seven hundred twenty-eight million, five hundred seventy-two thousand, eight hundred seventy-three".