85908932517 has 32 divisors (see below), whose sum is σ = 123399290880. Its totient is φ = 53022530880.

The previous prime is 85908932513. The next prime is 85908932569. The reversal of 85908932517 is 71523980958.

It is not a de Polignac number, because 85908932517 - 2² = 85908932513 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85908932513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 399534 + ... + 575712.

It is an arithmetic number, because the mean of its divisors is an integer number (3856227840).

Almost surely, 2^85908932517 is an apocalyptic number.

It is an amenable number.

85908932517 is a deficient number, since it is larger than the sum of its proper divisors (37490358363).

85908932517 is a wasteful number, since it uses less digits than its factorization.

85908932517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176433.

The product of its (nonzero) digits is 5443200, while the sum is 57.

The spelling of 85908932517 in words is "eighty-five billion, nine hundred eight million, nine hundred thirty-two thousand, five hundred seventeen".