172417133859 has 4 divisors (see below), whose sum is σ = 229889511816. Its totient is φ = 114944755904.

The previous prime is 172417133843. The next prime is 172417133957. The reversal of 172417133859 is 958331714271.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 958331714271 = 3 ⋅319443904757.

It is a cyclic number.

It is not a de Polignac number, because 172417133859 - 2⁴ = 172417133843 is a prime.

It is not an unprimeable number, because it can be changed into a prime (172417133059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28736188974 + ... + 28736188979.

It is an arithmetic number, because the mean of its divisors is an integer number (57472377954).

Almost surely, 2^172417133859 is an apocalyptic number.

172417133859 is a deficient number, since it is larger than the sum of its proper divisors (57472377957).

172417133859 is an equidigital number, since it uses as much as digits as its factorization.

172417133859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57472377956.

The product of its digits is 1270080, while the sum is 51.

The spelling of 172417133859 in words is "one hundred seventy-two billion, four hundred seventeen million, one hundred thirty-three thousand, eight hundred fifty-nine".