85807681705317 has 64 divisors (see below), whose sum is σ = 137550853794816. Its totient is φ = 46883500392960.

The previous prime is 85807681705271. The next prime is 85807681705357. The reversal of 85807681705317 is 71350718670858.

It is not a de Polignac number, because 85807681705317 - 2¹⁰ = 85807681704293 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85807681705357) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 200544993 + ... + 200972409.

It is an arithmetic number, because the mean of its divisors is an integer number (2149232090544).

Almost surely, 2^{85807681705317} is an apocalyptic number.

It is an amenable number.

85807681705317 is a deficient number, since it is larger than the sum of its proper divisors (51743172089499).

85807681705317 is a wasteful number, since it uses less digits than its factorization.

85807681705317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438370.

The product of its (nonzero) digits is 79027200, while the sum is 66.

The spelling of 85807681705317 in words is "eighty-five trillion, eight hundred seven billion, six hundred eighty-one million, seven hundred five thousand, three hundred seventeen".