8585491171 has 2 divisors, whose sum is σ = 8585491172. Its totient is φ = 8585491170.

The previous prime is 8585491157. The next prime is 8585491219. The reversal of 8585491171 is 1711945858.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8585491171 - 2²³ = 8577102563 is a prime.

It is not a weakly prime, because it can be changed into another prime (8585497171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4292745585 + 4292745586.

It is an arithmetic number, because the mean of its divisors is an integer number (4292745586).

Almost surely, 2^8585491171 is an apocalyptic number.

8585491171 is a deficient number, since it is larger than the sum of its proper divisors (1).

8585491171 is an equidigital number, since it uses as much as digits as its factorization.

8585491171 is an evil number, because the sum of its binary digits is even.

The product of its digits is 403200, while the sum is 49.

The square root of 8585491171 is about 92657.9255703472. The cubic root of 8585491171 is about 2047.6468077192.

The spelling of 8585491171 in words is "eight billion, five hundred eighty-five million, four hundred ninety-one thousand, one hundred seventy-one".