2776244249 has 2 divisors, whose sum is σ = 2776244250. Its totient is φ = 2776244248.

The previous prime is 2776244221. The next prime is 2776244281. The reversal of 2776244249 is 9424426772.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2560360000 + 215884249 = 50600^2 + 14693^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2776244249 is a prime.

It is not a weakly prime, because it can be changed into another prime (2776241249) 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, 1388122124 + 1388122125.

It is an arithmetic number, because the mean of its divisors is an integer number (1388122125).

Almost surely, 2^2776244249 is an apocalyptic number.

It is an amenable number.

2776244249 is a deficient number, since it is larger than the sum of its proper divisors (1).

2776244249 is an equidigital number, since it uses as much as digits as its factorization.

2776244249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1354752, while the sum is 47.

The square root of 2776244249 is about 52690.0773296073. The cubic root of 2776244249 is about 1405.4623755645.

The spelling of 2776244249 in words is "two billion, seven hundred seventy-six million, two hundred forty-four thousand, two hundred forty-nine".