447667253525797 has 2 divisors, whose sum is σ = 447667253525798. Its totient is φ = 447667253525796.

The previous prime is 447667253525759. The next prime is 447667253525839. The reversal of 447667253525797 is 797525352766744.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 376616666944996 + 71050586580801 = 19406614^2 + 8429151^2 .

It is a cyclic number.

It is not a de Polignac number, because 447667253525797 - 2¹⁹ = 447667253001509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (447667253525717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 223833626762898 + 223833626762899.

It is an arithmetic number, because the mean of its divisors is an integer number (223833626762899).

Almost surely, 2^{447667253525797} is an apocalyptic number.

It is an amenable number.

447667253525797 is a deficient number, since it is larger than the sum of its proper divisors (1).

447667253525797 is an equidigital number, since it uses as much as digits as its factorization.

447667253525797 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18670176000, while the sum is 79.

The spelling of 447667253525797 in words is "four hundred forty-seven trillion, six hundred sixty-seven billion, two hundred fifty-three million, five hundred twenty-five thousand, seven hundred ninety-seven".