172274161922709 has 16 divisors (see below), whose sum is σ = 286377827612160. Its totient is φ = 89493071128560.

The previous prime is 172274161922689. The next prime is 172274161922741. The reversal of 172274161922709 is 907229161472271.

It is not a de Polignac number, because 172274161922709 - 2³² = 172269866955413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172274161922209) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 372887796139 + ... + 372887796600.

It is an arithmetic number, because the mean of its divisors is an integer number (17898614225760).

Almost surely, 2^{172274161922709} is an apocalyptic number.

It is an amenable number.

172274161922709 is a deficient number, since it is larger than the sum of its proper divisors (114103665689451).

172274161922709 is a wasteful number, since it uses less digits than its factorization.

172274161922709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 745775592760.

The product of its (nonzero) digits is 10668672, while the sum is 60.

The spelling of 172274161922709 in words is "one hundred seventy-two trillion, two hundred seventy-four billion, one hundred sixty-one million, nine hundred twenty-two thousand, seven hundred nine".