85009335185 has 4 divisors (see below), whose sum is σ = 102011202228. Its totient is φ = 68007468144.

The previous prime is 85009335161. The next prime is 85009335197. The reversal of 85009335185 is 58153390058.

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 14323541761 + 70685793424 = 119681^2 + 265868^2 .

It is a cyclic number.

It is not a de Polignac number, because 85009335185 - 2¹² = 85009331089 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8500933514 + ... + 8500933523.

It is an arithmetic number, because the mean of its divisors is an integer number (25502800557).

Almost surely, 2^85009335185 is an apocalyptic number.

It is an amenable number.

85009335185 is a deficient number, since it is larger than the sum of its proper divisors (17001867043).

85009335185 is a wasteful number, since it uses less digits than its factorization.

85009335185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17001867042.

The product of its (nonzero) digits is 648000, while the sum is 47.

The spelling of 85009335185 in words is "eighty-five billion, nine million, three hundred thirty-five thousand, one hundred eighty-five".