2634644449 has 2 divisors, whose sum is σ = 2634644450. Its totient is φ = 2634644448.

The previous prime is 2634644423. The next prime is 2634644521. The reversal of 2634644449 is 9444464362.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1531939600 + 1102704849 = 39140^2 + 33207^2 .

It is a cyclic number.

It is not a de Polignac number, because 2634644449 - 2⁷ = 2634644321 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2634644399 and 2634644408.

It is not a weakly prime, because it can be changed into another prime (2634644249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1317322224 + 1317322225.

It is an arithmetic number, because the mean of its divisors is an integer number (1317322225).

Almost surely, 2^2634644449 is an apocalyptic number.

It is an amenable number.

2634644449 is a deficient number, since it is larger than the sum of its proper divisors (1).

2634644449 is an equidigital number, since it uses as much as digits as its factorization.

2634644449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1990656, while the sum is 46.

The square root of 2634644449 is about 51328.7877219012. The cubic root of 2634644449 is about 1381.1494394853.

The spelling of 2634644449 in words is "two billion, six hundred thirty-four million, six hundred forty-four thousand, four hundred forty-nine".