15396398171 has 16 divisors (see below), whose sum is σ = 19220939520. Its totient is φ = 11981299680.

The previous prime is 15396398141. The next prime is 15396398197. The reversal of 15396398171 is 17189369351.

It is a de Polignac number, because none of the positive numbers 2^k-15396398171 is a prime.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15396398111) 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, 73781 + ... + 190358.

It is an arithmetic number, because the mean of its divisors is an integer number (1201308720).

Almost surely, 2^15396398171 is an apocalyptic number.

15396398171 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

15396398171 is a deficient number, since it is larger than the sum of its proper divisors (3824541349).

15396398171 is a wasteful number, since it uses less digits than its factorization.

15396398171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264914.

The product of its digits is 1224720, while the sum is 53.

The spelling of 15396398171 in words is "fifteen billion, three hundred ninety-six million, three hundred ninety-eight thousand, one hundred seventy-one".