171942274229 has 8 divisors (see below), whose sum is σ = 187673880288. Its totient is φ = 156227416560.

The previous prime is 171942274223. The next prime is 171942274243. The reversal of 171942274229 is 922472249171.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 171942274229 - 2²⁰ = 171941225653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (171942274223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4165622 + ... + 4206695.

It is an arithmetic number, because the mean of its divisors is an integer number (23459235036).

Almost surely, 2^171942274229 is an apocalyptic number.

It is an amenable number.

171942274229 is a deficient number, since it is larger than the sum of its proper divisors (15731606059).

171942274229 is a wasteful number, since it uses less digits than its factorization.

171942274229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8374195.

The product of its digits is 1016064, while the sum is 50.

The spelling of 171942274229 in words is "one hundred seventy-one billion, nine hundred forty-two million, two hundred seventy-four thousand, two hundred twenty-nine".