846490643099 has 2 divisors, whose sum is σ = 846490643100. Its totient is φ = 846490643098.

The previous prime is 846490643077. The next prime is 846490643113. The reversal of 846490643099 is 990346094648.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 846490643099 - 2¹² = 846490639003 is a prime.

It is not a weakly prime, because it can be changed into another prime (846490649099) 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, 423245321549 + 423245321550.

It is an arithmetic number, because the mean of its divisors is an integer number (423245321550).

Almost surely, 2^846490643099 is an apocalyptic number.

846490643099 is a deficient number, since it is larger than the sum of its proper divisors (1).

846490643099 is an equidigital number, since it uses as much as digits as its factorization.

846490643099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40310784, while the sum is 62.

The spelling of 846490643099 in words is "eight hundred forty-six billion, four hundred ninety million, six hundred forty-three thousand, ninety-nine".