839800223891 has 2 divisors, whose sum is σ = 839800223892. Its totient is φ = 839800223890.

The previous prime is 839800223869. The next prime is 839800223897. The reversal of 839800223891 is 198322008938.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 839800223891 - 2⁶ = 839800223827 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (839800223897) 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, 419900111945 + 419900111946.

It is an arithmetic number, because the mean of its divisors is an integer number (419900111946).

Almost surely, 2^839800223891 is an apocalyptic number.

839800223891 is a deficient number, since it is larger than the sum of its proper divisors (1).

839800223891 is an equidigital number, since it uses as much as digits as its factorization.

839800223891 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1492992, while the sum is 53.

The spelling of 839800223891 in words is "eight hundred thirty-nine billion, eight hundred million, two hundred twenty-three thousand, eight hundred ninety-one".