447646364663 has 2 divisors, whose sum is σ = 447646364664. Its totient is φ = 447646364662.

The previous prime is 447646364657. The next prime is 447646364771. The reversal of 447646364663 is 366463646744.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 447646364663 - 2⁴ = 447646364647 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (447646366663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 223823182331 + 223823182332.

It is an arithmetic number, because the mean of its divisors is an integer number (223823182332).

Almost surely, 2^447646364663 is an apocalyptic number.

447646364663 is a deficient number, since it is larger than the sum of its proper divisors (1).

447646364663 is an equidigital number, since it uses as much as digits as its factorization.

447646364663 is an evil number, because the sum of its binary digits is even.

The product of its digits is 125411328, while the sum is 59.

The spelling of 447646364663 in words is "four hundred forty-seven billion, six hundred forty-six million, three hundred sixty-four thousand, six hundred sixty-three".