85168039975 has 6 divisors (see below), whose sum is σ = 105608369600. Its totient is φ = 68134431960.

The previous prime is 85168039939. The next prime is 85168039987. The reversal of 85168039975 is 57993086158.

It is not a de Polignac number, because 85168039975 - 2¹³ = 85168031783 is a prime.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 1703360775 + ... + 1703360824.

Almost surely, 2^85168039975 is an apocalyptic number.

85168039975 is a deficient number, since it is larger than the sum of its proper divisors (20440329625).

85168039975 is a wasteful number, since it uses less digits than its factorization.

85168039975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3406721609 (or 3406721604 counting only the distinct ones).

The product of its (nonzero) digits is 16329600, while the sum is 61.

The spelling of 85168039975 in words is "eighty-five billion, one hundred sixty-eight million, thirty-nine thousand, nine hundred seventy-five".