85005807713 has 2 divisors, whose sum is σ = 85005807714. Its totient is φ = 85005807712.

The previous prime is 85005807673. The next prime is 85005807811. The reversal of 85005807713 is 31770850058.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 59235284689 + 25770523024 = 243383^2 + 160532^2 .

It is a cyclic number.

It is not a de Polignac number, because 85005807713 - 2²⁰ = 85004759137 is a prime.

It is not a weakly prime, because it can be changed into another prime (85005807113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42502903856 + 42502903857.

It is an arithmetic number, because the mean of its divisors is an integer number (42502903857).

Almost surely, 2^85005807713 is an apocalyptic number.

It is an amenable number.

85005807713 is a deficient number, since it is larger than the sum of its proper divisors (1).

85005807713 is an equidigital number, since it uses as much as digits as its factorization.

85005807713 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 235200, while the sum is 44.

The spelling of 85005807713 in words is "eighty-five billion, five million, eight hundred seven thousand, seven hundred thirteen".