85051930173 has 32 divisors (see below), whose sum is σ = 132554016000. Its totient is φ = 48488606208.

The previous prime is 85051930153. The next prime is 85051930177. The reversal of 85051930173 is 37103915058.

It is not a de Polignac number, because 85051930173 - 2¹⁸ = 85051668029 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85051930177) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 350113 + ... + 541001.

It is an arithmetic number, because the mean of its divisors is an integer number (4142313000).

Almost surely, 2^85051930173 is an apocalyptic number.

It is an amenable number.

85051930173 is a deficient number, since it is larger than the sum of its proper divisors (47502085827).

85051930173 is a wasteful number, since it uses less digits than its factorization.

85051930173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191346 (or 191332 counting only the distinct ones).

The product of its (nonzero) digits is 113400, while the sum is 42.

The spelling of 85051930173 in words is "eighty-five billion, fifty-one million, nine hundred thirty thousand, one hundred seventy-three".