808924849643 has 2 divisors, whose sum is σ = 808924849644. Its totient is φ = 808924849642.

The previous prime is 808924849639. The next prime is 808924849687. The reversal of 808924849643 is 346948429808.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 808924849643 - 2² = 808924849639 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 808924849643.

It is not a weakly prime, because it can be changed into another prime (808924849693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 404462424821 + 404462424822.

It is an arithmetic number, because the mean of its divisors is an integer number (404462424822).

Almost surely, 2^808924849643 is an apocalyptic number.

808924849643 is a deficient number, since it is larger than the sum of its proper divisors (1).

808924849643 is an equidigital number, since it uses as much as digits as its factorization.

808924849643 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 95551488, while the sum is 65.

The spelling of 808924849643 in words is "eight hundred eight billion, nine hundred twenty-four million, eight hundred forty-nine thousand, six hundred forty-three".