85316688013 has 8 divisors (see below), whose sum is σ = 85390975800. Its totient is φ = 85242436608.

The previous prime is 85316687993. The next prime is 85316688073. The reversal of 85316688013 is 31088661358.

It can be written as a sum of positive squares in 4 ways, for example, as 1909515204 + 83407172809 = 43698^2 + 288803^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 85316688013 - 2⁹ = 85316687501 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 (85316688073) 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 in 7 ways as a sum of consecutive naturals, for example, 6569995 + ... + 6582967.

It is an arithmetic number, because the mean of its divisors is an integer number (10673871975).

Almost surely, 2^85316688013 is an apocalyptic number.

It is an amenable number.

85316688013 is a deficient number, since it is larger than the sum of its proper divisors (74287787).

85316688013 is a wasteful number, since it uses less digits than its factorization.

85316688013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18191.

The product of its (nonzero) digits is 829440, while the sum is 49.

The spelling of 85316688013 in words is "eighty-five billion, three hundred sixteen million, six hundred eighty-eight thousand, thirteen".