2243666879 has 2 divisors, whose sum is σ = 2243666880. Its totient is φ = 2243666878.

The previous prime is 2243666849. The next prime is 2243666891. The reversal of 2243666879 is 9786663422.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2243666879 - 2²⁰ = 2242618303 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2243666879.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2243666849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1121833439 + 1121833440.

It is an arithmetic number, because the mean of its divisors is an integer number (1121833440).

Almost surely, 2^2243666879 is an apocalyptic number.

2243666879 is a deficient number, since it is larger than the sum of its proper divisors (1).

2243666879 is an equidigital number, since it uses as much as digits as its factorization.

2243666879 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5225472, while the sum is 53.

The square root of 2243666879 is about 47367.3609038967. The cubic root of 2243666879 is about 1309.1400993881.

The spelling of 2243666879 in words is "two billion, two hundred forty-three million, six hundred sixty-six thousand, eight hundred seventy-nine".