471904424209 has 15 divisors (see below), whose sum is σ = 501609123687. Its totient is φ = 443958489216.

The previous prime is 471904424143. The next prime is 471904424281. The reversal of 471904424209 is 902424409174.

The square root of 471904424209 is 686953.

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

It can be written as a sum of positive squares in 7 ways, for example, as 41137980625 + 430766443584 = 202825^2 + 656328^2 .

It is a de Polignac number, because none of the positive numbers 2^k-471904424209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (471904424309) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 198528229 + ... + 198530605.

Almost surely, 2^471904424209 is an apocalyptic number.

471904424209 is the 686953-rd square number.

471904424209 is the 343477-th centered octagonal number.

It is an amenable number.

471904424209 is a deficient number, since it is larger than the sum of its proper divisors (29704699478).

471904424209 is an frugal number, since it uses more digits than its factorization.

471904424209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4822 (or 2394 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 46.

The spelling of 471904424209 in words is "four hundred seventy-one billion, nine hundred four million, four hundred twenty-four thousand, two hundred nine".