8085717189171 has 12 divisors (see below), whose sum is σ = 11727831389560. Its totient is φ = 5368110995520.

The previous prime is 8085717189163. The next prime is 8085717189197. The reversal of 8085717189171 is 1719817175808.

It is not a de Polignac number, because 8085717189171 - 2³ = 8085717189163 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8085717189099 and 8085717189108.

It is not an unprimeable number, because it can be changed into a prime (8085717189271) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1863925261 + ... + 1863929598.

Almost surely, 2^{8085717189171} is an apocalyptic number.

8085717189171 is a deficient number, since it is larger than the sum of its proper divisors (3642114200389).

8085717189171 is a wasteful number, since it uses less digits than its factorization.

8085717189171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3727855106 (or 3727855103 counting only the distinct ones).

The product of its (nonzero) digits is 7902720, while the sum is 63.

The spelling of 8085717189171 in words is "eight trillion, eighty-five billion, seven hundred seventeen million, one hundred eighty-nine thousand, one hundred seventy-one".