447471358489 has 45 divisors (see below), whose sum is σ = 506394642957. Its totient is φ = 395323348608.

The previous prime is 447471358471. The next prime is 447471358519. The reversal of 447471358489 is 984853174744.

The square root of 447471358489 is 668933.

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 102070665225 + 345400693264 = 319485^2 + 587708^2 .

It is not a de Polignac number, because 447471358489 - 2⁵ = 447471358457 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 447471358489.

It is not an unprimeable number, because it can be changed into a prime (447471358889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 4105241767 + ... + 4105241875.

Almost surely, 2^447471358489 is an apocalyptic number.

447471358489 is the 668933-rd square number.

447471358489 is the 334467-th centered octagonal number.

It is an amenable number.

447471358489 is a deficient number, since it is larger than the sum of its proper divisors (58923284468).

447471358489 is an frugal number, since it uses more digits than its factorization.

447471358489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328 (or 145 counting only the distinct ones).

The product of its digits is 108380160, while the sum is 64.

Multiplying 447471358489 by its sum of digits (64), we get a square (28638166943296 = 5351464²).

The spelling of 447471358489 in words is "four hundred forty-seven billion, four hundred seventy-one million, three hundred fifty-eight thousand, four hundred eighty-nine".