447978013246633 has 2 divisors, whose sum is σ = 447978013246634. Its totient is φ = 447978013246632.

The previous prime is 447978013246597. The next prime is 447978013246691. The reversal of 447978013246633 is 336642310879744.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 225120976257024 + 222857036989609 = 15004032^2 + 14928397^2 .

It is a cyclic number.

It is not a de Polignac number, because 447978013246633 - 2¹⁷ = 447978013115561 is a prime.

It is not a weakly prime, because it can be changed into another prime (447978013246433) 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, 223989006623316 + 223989006623317.

It is an arithmetic number, because the mean of its divisors is an integer number (223989006623317).

Almost surely, 2^{447978013246633} is an apocalyptic number.

It is an amenable number.

447978013246633 is a deficient number, since it is larger than the sum of its proper divisors (1).

447978013246633 is an equidigital number, since it uses as much as digits as its factorization.

447978013246633 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 438939648, while the sum is 67.

The spelling of 447978013246633 in words is "four hundred forty-seven trillion, nine hundred seventy-eight billion, thirteen million, two hundred forty-six thousand, six hundred thirty-three".