447621364643 has 2 divisors, whose sum is σ = 447621364644. Its totient is φ = 447621364642.

The previous prime is 447621364613. The next prime is 447621364661. The reversal of 447621364643 is 346463126744.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 447621364643 - 2¹⁰ = 447621363619 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 447621364591 and 447621364600.

It is not a weakly prime, because it can be changed into another prime (447621364613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 223810682321 + 223810682322.

It is an arithmetic number, because the mean of its divisors is an integer number (223810682322).

Almost surely, 2^447621364643 is an apocalyptic number.

447621364643 is a deficient number, since it is larger than the sum of its proper divisors (1).

447621364643 is an equidigital number, since it uses as much as digits as its factorization.

447621364643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6967296, while the sum is 50.

The spelling of 447621364643 in words is "four hundred forty-seven billion, six hundred twenty-one million, three hundred sixty-four thousand, six hundred forty-three".