447381630021647 has 2 divisors, whose sum is σ = 447381630021648. Its totient is φ = 447381630021646.

The previous prime is 447381630021629. The next prime is 447381630021661. The reversal of 447381630021647 is 746120036183744.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 447381630021647 - 2²⁴ = 447381613244431 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 447381630021592 and 447381630021601.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (447381630021847) 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 as a sum of consecutive naturals, namely, 223690815010823 + 223690815010824.

It is an arithmetic number, because the mean of its divisors is an integer number (223690815010824).

Almost surely, 2^{447381630021647} is an apocalyptic number.

447381630021647 is a deficient number, since it is larger than the sum of its proper divisors (1).

447381630021647 is an equidigital number, since it uses as much as digits as its factorization.

447381630021647 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16257024, while the sum is 56.

The spelling of 447381630021647 in words is "four hundred forty-seven trillion, three hundred eighty-one billion, six hundred thirty million, twenty-one thousand, six hundred forty-seven".