2279194889 has 2 divisors, whose sum is σ = 2279194890. Its totient is φ = 2279194888.

The previous prime is 2279194877. The next prime is 2279194943. The reversal of 2279194889 is 9884919722.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2013765625 + 265429264 = 44875^2 + 16292^2 .

It is a cyclic number.

It is not a de Polignac number, because 2279194889 - 2²⁴ = 2262417673 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (2279194189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1139597444 + 1139597445.

It is an arithmetic number, because the mean of its divisors is an integer number (1139597445).

Almost surely, 2^2279194889 is an apocalyptic number.

It is an amenable number.

2279194889 is a deficient number, since it is larger than the sum of its proper divisors (1).

2279194889 is an equidigital number, since it uses as much as digits as its factorization.

2279194889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5225472, while the sum is 59.

The square root of 2279194889 is about 47740.9142036472. The cubic root of 2279194889 is about 1316.0139334590.

The spelling of 2279194889 in words is "two billion, two hundred seventy-nine million, one hundred ninety-four thousand, eight hundred eighty-nine".