846649040899 has 2 divisors, whose sum is σ = 846649040900. Its totient is φ = 846649040898.

The previous prime is 846649040863. The next prime is 846649040921. The reversal of 846649040899 is 998040946648.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 846649040899 - 2⁷ = 846649040771 is a prime.

It is not a weakly prime, because it can be changed into another prime (846649043899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 423324520449 + 423324520450.

It is an arithmetic number, because the mean of its divisors is an integer number (423324520450).

Almost surely, 2^846649040899 is an apocalyptic number.

846649040899 is a deficient number, since it is larger than the sum of its proper divisors (1).

846649040899 is an equidigital number, since it uses as much as digits as its factorization.

846649040899 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 107495424, while the sum is 67.

The spelling of 846649040899 in words is "eight hundred forty-six billion, six hundred forty-nine million, forty thousand, eight hundred ninety-nine".