447247463572717 has 2 divisors, whose sum is σ = 447247463572718. Its totient is φ = 447247463572716.

The previous prime is 447247463572709. The next prime is 447247463572729. The reversal of 447247463572717 is 717275364742744.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 416422548596356 + 30824914976361 = 20406434^2 + 5552019^2 .

It is a cyclic number.

It is not a de Polignac number, because 447247463572717 - 2³ = 447247463572709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (447247463576717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 223623731786358 + 223623731786359.

It is an arithmetic number, because the mean of its divisors is an integer number (223623731786359).

Almost surely, 2^{447247463572717} is an apocalyptic number.

It is an amenable number.

447247463572717 is a deficient number, since it is larger than the sum of its proper divisors (1).

447247463572717 is an equidigital number, since it uses as much as digits as its factorization.

447247463572717 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1548933120, while the sum is 70.

The spelling of 447247463572717 in words is "four hundred forty-seven trillion, two hundred forty-seven billion, four hundred sixty-three million, five hundred seventy-two thousand, seven hundred seventeen".