85807638828717 has 16 divisors (see below), whose sum is σ = 123250245437760. Its totient is φ = 52787867876352.

The previous prime is 85807638828697. The next prime is 85807638828781. The reversal of 85807638828717 is 71782883670858.

It is not a de Polignac number, because 85807638828717 - 2⁷ = 85807638828589 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85807638828017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 350562367 + ... + 350807052.

It is an arithmetic number, because the mean of its divisors is an integer number (7703140339860).

Almost surely, 2^{85807638828717} is an apocalyptic number.

It is an amenable number.

85807638828717 is a deficient number, since it is larger than the sum of its proper divisors (37442606609043).

85807638828717 is a wasteful number, since it uses less digits than its factorization.

85807638828717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 701372572.

The product of its (nonzero) digits is 2023096320, while the sum is 78.

The spelling of 85807638828717 in words is "eighty-five trillion, eight hundred seven billion, six hundred thirty-eight million, eight hundred twenty-eight thousand, seven hundred seventeen".