171994337284 has 81 divisors (see below), whose sum is σ = 384998060181. Its totient is φ = 66985897440.

The previous prime is 171994337267. The next prime is 171994337321. The reversal of 171994337284 is 482733499171.

The square root of 171994337284 is 414722.

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., 70569922500 + 101424414784 = 265650^2 + 318472^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 63865842 + ... + 63868534.

Almost surely, 2^171994337284 is an apocalyptic number.

171994337284 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

171994337284 is the 414722-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 171994337284

171994337284 is an abundant number, since it is smaller than the sum of its proper divisors (213003722897).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

171994337284 is an equidigital number, since it uses as much as digits as its factorization.

171994337284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5426 (or 2713 counting only the distinct ones).

The product of its digits is 9144576, while the sum is 58.

The spelling of 171994337284 in words is "one hundred seventy-one billion, nine hundred ninety-four million, three hundred thirty-seven thousand, two hundred eighty-four".