822307726649 has 2 divisors, whose sum is σ = 822307726650. Its totient is φ = 822307726648.

The previous prime is 822307726637. The next prime is 822307726673. The reversal of 822307726649 is 946627703228.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 651434623225 + 170873103424 = 807115^2 + 413368^2 .

It is a cyclic number.

It is not a de Polignac number, because 822307726649 - 2¹² = 822307722553 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 822307726594 and 822307726603.

It is not a weakly prime, because it can be changed into another prime (822307723649) 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, 411153863324 + 411153863325.

It is an arithmetic number, because the mean of its divisors is an integer number (411153863325).

Almost surely, 2^822307726649 is an apocalyptic number.

It is an amenable number.

822307726649 is a deficient number, since it is larger than the sum of its proper divisors (1).

822307726649 is an equidigital number, since it uses as much as digits as its factorization.

822307726649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12192768, while the sum is 56.

The spelling of 822307726649 in words is "eight hundred twenty-two billion, three hundred seven million, seven hundred twenty-six thousand, six hundred forty-nine".