186530130171217 has 24 divisors (see below), whose sum is σ = 217242009331200. Its totient is φ = 159692889174336.

The previous prime is 186530130171199. The next prime is 186530130171223. The reversal of 186530130171217 is 712171031035681.

It is a de Polignac number, because none of the positive numbers 2^k-186530130171217 is a prime.

It is a super-2 number, since 2×186530130171217² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (186530130151217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2667386709 + ... + 2667456637.

It is an arithmetic number, because the mean of its divisors is an integer number (9051750388800).

Almost surely, 2^{186530130171217} is an apocalyptic number.

It is an amenable number.

186530130171217 is a deficient number, since it is larger than the sum of its proper divisors (30711879159983).

186530130171217 is an equidigital number, since it uses as much as digits as its factorization.

186530130171217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133885 (or 133878 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 46.

The spelling of 186530130171217 in words is "one hundred eighty-six trillion, five hundred thirty billion, one hundred thirty million, one hundred seventy-one thousand, two hundred seventeen".