2273407649 has 2 divisors, whose sum is σ = 2273407650. Its totient is φ = 2273407648.

The previous prime is 2273407621. The next prime is 2273407681. The reversal of 2273407649 is 9467043722.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1520454049 + 752953600 = 38993^2 + 27440^2 .

It is a cyclic number.

It is not a de Polignac number, because 2273407649 - 2⁸ = 2273407393 is a prime.

It is not a weakly prime, because it can be changed into another prime (2273407049) 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, 1136703824 + 1136703825.

It is an arithmetic number, because the mean of its divisors is an integer number (1136703825).

Almost surely, 2^2273407649 is an apocalyptic number.

It is an amenable number.

2273407649 is a deficient number, since it is larger than the sum of its proper divisors (1).

2273407649 is an equidigital number, since it uses as much as digits as its factorization.

2273407649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 508032, while the sum is 44.

The square root of 2273407649 is about 47680.2647748521. The cubic root of 2273407649 is about 1314.8991328223.

The spelling of 2273407649 in words is "two billion, two hundred seventy-three million, four hundred seven thousand, six hundred forty-nine".