172317867163 has 16 divisors (see below), whose sum is σ = 193702904640. Its totient is φ = 152098619904.

The previous prime is 172317867143. The next prime is 172317867263. The reversal of 172317867163 is 361768713271.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-172317867163 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 172317867163.

It is not an unprimeable number, because it can be changed into a prime (172317867143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 869695 + ... + 1049287.

It is an arithmetic number, because the mean of its divisors is an integer number (12106431540).

Almost surely, 2^172317867163 is an apocalyptic number.

172317867163 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

172317867163 is a deficient number, since it is larger than the sum of its proper divisors (21385037477).

172317867163 is a wasteful number, since it uses less digits than its factorization.

172317867163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182838.

The product of its digits is 1778112, while the sum is 52.

The spelling of 172317867163 in words is "one hundred seventy-two billion, three hundred seventeen million, eight hundred sixty-seven thousand, one hundred sixty-three".