172514247085 has 16 divisors (see below), whose sum is σ = 218057132160. Its totient is φ = 130661000640.

The previous prime is 172514247077. The next prime is 172514247107. The reversal of 172514247085 is 580742415271.

It is not a de Polignac number, because 172514247085 - 2³ = 172514247077 is a prime.

It is a super-2 number, since 2×172514247085² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 457362 + ... + 744451.

It is an arithmetic number, because the mean of its divisors is an integer number (13628570760).

Almost surely, 2^172514247085 is an apocalyptic number.

It is an amenable number.

172514247085 is a deficient number, since it is larger than the sum of its proper divisors (45542885075).

172514247085 is a wasteful number, since it uses less digits than its factorization.

172514247085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1203348.

The product of its (nonzero) digits is 627200, while the sum is 46.

The spelling of 172514247085 in words is "one hundred seventy-two billion, five hundred fourteen million, two hundred forty-seven thousand, eighty-five".