171792945122 has 6 divisors (see below), whose sum is σ = 257690296929. Its totient is φ = 85896179480.

The previous prime is 171792945097. The next prime is 171792945133. The reversal of 171792945122 is 221549297171.

It can be written as a sum of positive squares in 2 ways, for example, as 98546394241 + 73246550881 = 313921^2 + 270641^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=293081.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 439622 + ... + 732702.

Almost surely, 2^171792945122 is an apocalyptic number.

171792945122 is a deficient number, since it is larger than the sum of its proper divisors (85897351807).

171792945122 is an frugal number, since it uses more digits than its factorization.

171792945122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 586164 (or 293083 counting only the distinct ones).

The product of its digits is 635040, while the sum is 50.

Multiplying 171792945122 by its sum of digits (50), we get a square (8589647256100 = 2930810²).

The spelling of 171792945122 in words is "one hundred seventy-one billion, seven hundred ninety-two million, nine hundred forty-five thousand, one hundred twenty-two".