85834173277217 has 4 divisors (see below), whose sum is σ = 85834350146196. Its totient is φ = 85833996408240.

The previous prime is 85834173277211. The next prime is 85834173277273. The reversal of 85834173277217 is 71277237143858.

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 31621008041536 + 54213165235681 = 5623256^2 + 7362959^2 .

It is a cyclic number.

It is not a de Polignac number, because 85834173277217 - 2³² = 85829878309921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85834173277211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87704534 + ... + 88677807.

It is an arithmetic number, because the mean of its divisors is an integer number (21458587536549).

Almost surely, 2^{85834173277217} is an apocalyptic number.

It is an amenable number.

85834173277217 is a deficient number, since it is larger than the sum of its proper divisors (176868979).

85834173277217 is a wasteful number, since it uses less digits than its factorization.

85834173277217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176868978.

The product of its digits is 110638080, while the sum is 65.

The spelling of 85834173277217 in words is "eighty-five trillion, eight hundred thirty-four billion, one hundred seventy-three million, two hundred seventy-seven thousand, two hundred seventeen".