15728730015873 has 16 divisors (see below), whose sum is σ = 24114629021696. Its totient is φ = 8932705563600.

The previous prime is 15728730015851. The next prime is 15728730015893. The reversal of 15728730015873 is 37851003782751.

It is not a de Polignac number, because 15728730015873 - 2⁶ = 15728730015809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15728730015833) 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, 2297503153 + ... + 2297509998.

It is an arithmetic number, because the mean of its divisors is an integer number (1507164313856).

Almost surely, 2^{15728730015873} is an apocalyptic number.

It is an amenable number.

15728730015873 is a deficient number, since it is larger than the sum of its proper divisors (8385899005823).

15728730015873 is a wasteful number, since it uses less digits than its factorization.

15728730015873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4595013324.

The product of its (nonzero) digits is 9878400, while the sum is 57.

The spelling of 15728730015873 in words is "fifteen trillion, seven hundred twenty-eight billion, seven hundred thirty million, fifteen thousand, eight hundred seventy-three".