846264328321 has 2 divisors, whose sum is σ = 846264328322. Its totient is φ = 846264328320.

The previous prime is 846264328309. The next prime is 846264328339. The reversal of 846264328321 is 123823462648.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 829075807296 + 17188521025 = 910536^2 + 131105^2 .

It is a cyclic number.

It is not a de Polignac number, because 846264328321 - 2⁵ = 846264328289 is a prime.

It is not a weakly prime, because it can be changed into another prime (846264328121) 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, 423132164160 + 423132164161.

It is an arithmetic number, because the mean of its divisors is an integer number (423132164161).

Almost surely, 2^846264328321 is an apocalyptic number.

It is an amenable number.

846264328321 is a deficient number, since it is larger than the sum of its proper divisors (1).

846264328321 is an equidigital number, since it uses as much as digits as its factorization.

846264328321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2654208, while the sum is 49.

The spelling of 846264328321 in words is "eight hundred forty-six billion, two hundred sixty-four million, three hundred twenty-eight thousand, three hundred twenty-one".