85132317673 has 4 divisors (see below), whose sum is σ = 91680957508. Its totient is φ = 78583677840.

The previous prime is 85132317587. The next prime is 85132317689. The reversal of 85132317673 is 37671323158.

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 51625747369 + 33506570304 = 227213^2 + 183048^2 .

It is a cyclic number.

It is not a de Polignac number, because 85132317673 - 2²⁵ = 85098763241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85132317773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3274319898 + ... + 3274319923.

It is an arithmetic number, because the mean of its divisors is an integer number (22920239377).

Almost surely, 2^85132317673 is an apocalyptic number.

It is an amenable number.

85132317673 is a deficient number, since it is larger than the sum of its proper divisors (6548639835).

85132317673 is a wasteful number, since it uses less digits than its factorization.

85132317673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6548639834.

The product of its digits is 635040, while the sum is 46.

The spelling of 85132317673 in words is "eighty-five billion, one hundred thirty-two million, three hundred seventeen thousand, six hundred seventy-three".