85680314945 has 8 divisors (see below), whose sum is σ = 102917880936. Its totient is φ = 68476583296.

The previous prime is 85680314927. The next prime is 85680314969. The reversal of 85680314945 is 54941308658.

It is a Cunningham number, because it is equal to 292712²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 1 + 85680314944 = 1^2 + 292712^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 85680314945 - 2²² = 85676120641 is a prime.

It is a super-2 number, since 2×85680314945² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8453012 + ... + 8463141.

It is an arithmetic number, because the mean of its divisors is an integer number (12864735117).

Almost surely, 2^85680314945 is an apocalyptic number.

It is an amenable number.

85680314945 is a deficient number, since it is larger than the sum of its proper divisors (17237565991).

85680314945 is a wasteful number, since it uses less digits than its factorization.

85680314945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16917171.

The product of its (nonzero) digits is 4147200, while the sum is 53.

The spelling of 85680314945 in words is "eighty-five billion, six hundred eighty million, three hundred fourteen thousand, nine hundred forty-five".