2812228709 has 2 divisors, whose sum is σ = 2812228710. Its totient is φ = 2812228708.

The previous prime is 2812228609. The next prime is 2812228711. The reversal of 2812228709 is 9078222182.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2702440225 + 109788484 = 51985^2 + 10478^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2812228709 is a prime.

Together with 2812228711, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2812228799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1406114354 + 1406114355.

It is an arithmetic number, because the mean of its divisors is an integer number (1406114355).

Almost surely, 2^2812228709 is an apocalyptic number.

It is an amenable number.

2812228709 is a deficient number, since it is larger than the sum of its proper divisors (1).

2812228709 is an equidigital number, since it uses as much as digits as its factorization.

2812228709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64512, while the sum is 41.

The square root of 2812228709 is about 53030.4507712314. The cubic root of 2812228709 is about 1411.5086561546.

The spelling of 2812228709 in words is "two billion, eight hundred twelve million, two hundred twenty-eight thousand, seven hundred nine".