85002715169 has 2 divisors, whose sum is σ = 85002715170. Its totient is φ = 85002715168.

The previous prime is 85002715157. The next prime is 85002715183. The reversal of 85002715169 is 96151720058.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 68258355169 + 16744360000 = 261263^2 + 129400^2 .

It is a cyclic number.

It is not a de Polignac number, because 85002715169 - 2⁸ = 85002714913 is a prime.

It is a super-2 number, since 2×85002715169² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (85002715199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42501357584 + 42501357585.

It is an arithmetic number, because the mean of its divisors is an integer number (42501357585).

Almost surely, 2^85002715169 is an apocalyptic number.

It is an amenable number.

85002715169 is a deficient number, since it is larger than the sum of its proper divisors (1).

85002715169 is an equidigital number, since it uses as much as digits as its factorization.

85002715169 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 151200, while the sum is 44.

The spelling of 85002715169 in words is "eighty-five billion, two million, seven hundred fifteen thousand, one hundred sixty-nine".