15728860290173 has 4 divisors (see below), whose sum is σ = 15729004103868. Its totient is φ = 15728716476480.

The previous prime is 15728860290139. The next prime is 15728860290197. The reversal of 15728860290173 is 37109206882751.

15728860290173 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6639346816249 + 9089513473924 = 2576693^2 + 3014882^2 .

It is a cyclic number.

It is not a de Polignac number, because 15728860290173 - 2²⁰ = 15728859241597 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15728860290673) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71742668 + ... + 71961573.

It is an arithmetic number, because the mean of its divisors is an integer number (3932251025967).

Almost surely, 2^{15728860290173} is an apocalyptic number.

It is an amenable number.

15728860290173 is a deficient number, since it is larger than the sum of its proper divisors (143813695).

15728860290173 is a wasteful number, since it uses less digits than its factorization.

15728860290173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143813694.

The product of its (nonzero) digits is 10160640, while the sum is 59.

The spelling of 15728860290173 in words is "fifteen trillion, seven hundred twenty-eight billion, eight hundred sixty million, two hundred ninety thousand, one hundred seventy-three".