471698360809 has 27 divisors (see below), whose sum is σ = 534179629893. Its totient is φ = 416301517632.

The previous prime is 471698360741. The next prime is 471698360827. The reversal of 471698360809 is 908063896174.

The square root of 471698360809 is 686803.

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

It can be written as a sum of positive squares in 4 ways, for example, as 78594440409 + 393103920400 = 280347^2 + 626980^2 .

It is not a de Polignac number, because 471698360809 - 2⁹ = 471698360297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (471698360849) by changing a digit.

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 26 ways as a sum of consecutive naturals, for example, 205352949 + ... + 205355245.

Almost surely, 2^471698360809 is an apocalyptic number.

471698360809 is the 686803-rd square number.

471698360809 is the 343402-nd centered octagonal number.

It is an amenable number.

471698360809 is a deficient number, since it is larger than the sum of its proper divisors (62481269084).

471698360809 is an frugal number, since it uses more digits than its factorization.

471698360809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4666 (or 2333 counting only the distinct ones).

The product of its (nonzero) digits is 15676416, while the sum is 61.

The spelling of 471698360809 in words is "four hundred seventy-one billion, six hundred ninety-eight million, three hundred sixty thousand, eight hundred nine".