85917376917 has 10 divisors (see below), whose sum is σ = 128345711318. Its totient is φ = 57278251224.

The previous prime is 85917376913. The next prime is 85917376927. The reversal of 85917376917 is 71967371958.

85917376917 is a `hidden beast` number, since 8 + 591 + 7 + 37 + 6 + 9 + 1 + 7 = 666.

It can be written as a sum of positive squares in only one way, i.e., 85456244241 + 461132676 = 292329^2 + 21474^2 .

It is not a de Polignac number, because 85917376917 - 2² = 85917376913 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85917376913) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 530354098 + ... + 530354259.

Almost surely, 2^85917376917 is an apocalyptic number.

It is an amenable number.

85917376917 is a deficient number, since it is larger than the sum of its proper divisors (42428334401).

85917376917 is a wasteful number, since it uses less digits than its factorization.

85917376917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1060708369 (or 1060708360 counting only the distinct ones).

The product of its digits is 20003760, while the sum is 63.

The spelling of 85917376917 in words is "eighty-five billion, nine hundred seventeen million, three hundred seventy-six thousand, nine hundred seventeen".