2773220243 has 2 divisors, whose sum is σ = 2773220244. Its totient is φ = 2773220242.

The previous prime is 2773220237. The next prime is 2773220257. The reversal of 2773220243 is 3420223772.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2773220243 - 2⁶ = 2773220179 is a prime.

It is not a weakly prime, because it can be changed into another prime (2773270243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1386610121 + 1386610122.

It is an arithmetic number, because the mean of its divisors is an integer number (1386610122).

Almost surely, 2^2773220243 is an apocalyptic number.

2773220243 is a deficient number, since it is larger than the sum of its proper divisors (1).

2773220243 is an equidigital number, since it uses as much as digits as its factorization.

2773220243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28224, while the sum is 32.

The square root of 2773220243 is about 52661.3733489737. The cubic root of 2773220243 is about 1404.9518932546.

The spelling of 2773220243 in words is "two billion, seven hundred seventy-three million, two hundred twenty thousand, two hundred forty-three".