171493717924 has 27 divisors (see below), whose sum is σ = 304077020961. Its totient is φ = 84629154480.

The previous prime is 171493717909. The next prime is 171493717933. The reversal of 171493717924 is 429717394171.

The square root of 171493717924 is 414118.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 141287277924 + 30206440000 = 375882^2 + 173800^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 65429334 + ... + 65431954.

Almost surely, 2^171493717924 is an apocalyptic number.

171493717924 is the 414118-th square number.

It is an amenable number.

171493717924 is a deficient number, since it is larger than the sum of its proper divisors (132583303037).

171493717924 is an frugal number, since it uses more digits than its factorization.

171493717924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5404 (or 2702 counting only the distinct ones).

The product of its digits is 2667168, while the sum is 55.

The spelling of 171493717924 in words is "one hundred seventy-one billion, four hundred ninety-three million, seven hundred seventeen thousand, nine hundred twenty-four".