172850168385 has 48 divisors (see below), whose sum is σ = 303639747840. Its totient is φ = 90947750400.

The previous prime is 172850168329. The next prime is 172850168417. The reversal of 172850168385 is 583861058271.

172850168385 is a `hidden beast` number, since 1 + 72 + 8 + 501 + 68 + 3 + 8 + 5 = 666.

It is not a de Polignac number, because 172850168385 - 2¹¹ = 172850166337 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4627785 + ... + 4664985.

It is an arithmetic number, because the mean of its divisors is an integer number (6325828080).

Almost surely, 2^172850168385 is an apocalyptic number.

172850168385 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

172850168385 is a deficient number, since it is larger than the sum of its proper divisors (130789579455).

172850168385 is a wasteful number, since it uses less digits than its factorization.

172850168385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38598 (or 38595 counting only the distinct ones).

The product of its (nonzero) digits is 3225600, while the sum is 54.

The spelling of 172850168385 in words is "one hundred seventy-two billion, eight hundred fifty million, one hundred sixty-eight thousand, three hundred eighty-five".