173117385207 has 24 divisors (see below), whose sum is σ = 272538228144. Its totient is φ = 105250230144.

The previous prime is 173117385193. The next prime is 173117385293. The reversal of 173117385207 is 702583711371.

173117385207 is a `hidden beast` number, since 1 + 7 + 3 + 117 + 3 + 8 + 520 + 7 = 666.

It is not a de Polignac number, because 173117385207 - 2¹⁸ = 173117123063 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (173117285207) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8903758 + ... + 8923179.

It is an arithmetic number, because the mean of its divisors is an integer number (11355759506).

Almost surely, 2^173117385207 is an apocalyptic number.

173117385207 is a deficient number, since it is larger than the sum of its proper divisors (99420842937).

173117385207 is a wasteful number, since it uses less digits than its factorization.

173117385207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17827039 (or 17827036 counting only the distinct ones).

The product of its (nonzero) digits is 246960, while the sum is 45.

The spelling of 173117385207 in words is "one hundred seventy-three billion, one hundred seventeen million, three hundred eighty-five thousand, two hundred seven".