822307723649 has 2 divisors, whose sum is σ = 822307723650. Its totient is φ = 822307723648.

The previous prime is 822307723579. The next prime is 822307723709. The reversal of 822307723649 is 946327703228.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 745212648049 + 77095075600 = 863257^2 + 277660^2 .

It is a cyclic number.

It is not a de Polignac number, because 822307723649 - 2²⁸ = 822039288193 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 822307723649.

It is not a weakly prime, because it can be changed into another prime (822307726649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 411153861824 + 411153861825.

It is an arithmetic number, because the mean of its divisors is an integer number (411153861825).

Almost surely, 2^822307723649 is an apocalyptic number.

It is an amenable number.

822307723649 is a deficient number, since it is larger than the sum of its proper divisors (1).

822307723649 is an equidigital number, since it uses as much as digits as its factorization.

822307723649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6096384, while the sum is 53.

The spelling of 822307723649 in words is "eight hundred twenty-two billion, three hundred seven million, seven hundred twenty-three thousand, six hundred forty-nine".