2204311649 has 2 divisors, whose sum is σ = 2204311650. Its totient is φ = 2204311648.

The previous prime is 2204311643. The next prime is 2204311661. The reversal of 2204311649 is 9461134022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1699500625 + 504811024 = 41225^2 + 22468^2 .

It is a cyclic number.

It is not a de Polignac number, because 2204311649 - 2⁴ = 2204311633 is a prime.

It is a super-3 number, since 3×2204311649³ (a number of 29 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (2204311643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1102155824 + 1102155825.

It is an arithmetic number, because the mean of its divisors is an integer number (1102155825).

Almost surely, 2^2204311649 is an apocalyptic number.

It is an amenable number.

2204311649 is a deficient number, since it is larger than the sum of its proper divisors (1).

2204311649 is an equidigital number, since it uses as much as digits as its factorization.

2204311649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 2204311649 is about 46950.0974333387. The cubic root of 2204311649 is about 1301.4405429725.

The spelling of 2204311649 in words is "two billion, two hundred four million, three hundred eleven thousand, six hundred forty-nine".