801674644643 has 2 divisors, whose sum is σ = 801674644644. Its totient is φ = 801674644642.

The previous prime is 801674644609. The next prime is 801674644711. The reversal of 801674644643 is 346446476108.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 801674644643 - 2¹⁰ = 801674643619 is a prime.

It is not a weakly prime, because it can be changed into another prime (801674644343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 400837322321 + 400837322322.

It is an arithmetic number, because the mean of its divisors is an integer number (400837322322).

Almost surely, 2^801674644643 is an apocalyptic number.

801674644643 is a deficient number, since it is larger than the sum of its proper divisors (1).

801674644643 is an equidigital number, since it uses as much as digits as its factorization.

801674644643 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9289728, while the sum is 53.

The spelling of 801674644643 in words is "eight hundred one billion, six hundred seventy-four million, six hundred forty-four thousand, six hundred forty-three".