171358964872229 has 2 divisors, whose sum is σ = 171358964872230. Its totient is φ = 171358964872228.

The previous prime is 171358964872087. The next prime is 171358964872231. The reversal of 171358964872229 is 922278469853171.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 171358964872225 + 4 = 13090415^2 + 2^2 .

It is a cyclic number.

It is not a de Polignac number, because 171358964872229 - 2²⁰ = 171358963823653 is a prime.

Together with 171358964872231, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (171358964872279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85679482436114 + 85679482436115.

It is an arithmetic number, because the mean of its divisors is an integer number (85679482436115).

Almost surely, 2^{171358964872229} is an apocalyptic number.

It is an amenable number.

171358964872229 is a deficient number, since it is larger than the sum of its proper divisors (1).

171358964872229 is an equidigital number, since it uses as much as digits as its factorization.

171358964872229 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 731566080, while the sum is 74.

The spelling of 171358964872229 in words is "one hundred seventy-one trillion, three hundred fifty-eight billion, nine hundred sixty-four million, eight hundred seventy-two thousand, two hundred twenty-nine".