2770774249 has 2 divisors, whose sum is σ = 2770774250. Its totient is φ = 2770774248.

The previous prime is 2770774247. The next prime is 2770774261. The reversal of 2770774249 is 9424770772.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1447269849 + 1323504400 = 38043^2 + 36380^2 .

It is a cyclic number.

It is not a de Polignac number, because 2770774249 - 2¹ = 2770774247 is a prime.

Together with 2770774247, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2770774241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1385387124 + 1385387125.

It is an arithmetic number, because the mean of its divisors is an integer number (1385387125).

Almost surely, 2^2770774249 is an apocalyptic number.

It is an amenable number.

2770774249 is a deficient number, since it is larger than the sum of its proper divisors (1).

2770774249 is an equidigital number, since it uses as much as digits as its factorization.

2770774249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1382976, while the sum is 49.

The square root of 2770774249 is about 52638.1444296814. The cubic root of 2770774249 is about 1404.5387135774.

The spelling of 2770774249 in words is "two billion, seven hundred seventy million, seven hundred seventy-four thousand, two hundred forty-nine".