85336437685 has 4 divisors (see below), whose sum is σ = 102403725228. Its totient is φ = 68269150144.

The previous prime is 85336437671. The next prime is 85336437709. The reversal of 85336437685 is 58673463358.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 33828773476 + 51507664209 = 183926^2 + 226953^2 .

It is a cyclic number.

It is not a de Polignac number, because 85336437685 - 2⁵ = 85336437653 is a prime.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8533643764 + ... + 8533643773.

It is an arithmetic number, because the mean of its divisors is an integer number (25600931307).

Almost surely, 2^85336437685 is an apocalyptic number.

It is an amenable number.

85336437685 is a deficient number, since it is larger than the sum of its proper divisors (17067287543).

85336437685 is a wasteful number, since it uses less digits than its factorization.

85336437685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17067287542.

The product of its digits is 43545600, while the sum is 58.

The spelling of 85336437685 in words is "eighty-five billion, three hundred thirty-six million, four hundred thirty-seven thousand, six hundred eighty-five".