2279894369 has 2 divisors, whose sum is σ = 2279894370. Its totient is φ = 2279894368.

The previous prime is 2279894347. The next prime is 2279894371. The reversal of 2279894369 is 9634989722.

2279894369 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2279107600 + 786769 = 47740^2 + 887^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2279894369 is a prime.

It is a super-2 number, since 2×2279894369² = 10395836667595816322, which contains 22 as substring.

Together with 2279894371, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2279894329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1139947184 + 1139947185.

It is an arithmetic number, because the mean of its divisors is an integer number (1139947185).

Almost surely, 2^2279894369 is an apocalyptic number.

It is an amenable number.

2279894369 is a deficient number, since it is larger than the sum of its proper divisors (1).

2279894369 is an equidigital number, since it uses as much as digits as its factorization.

2279894369 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11757312, while the sum is 59.

The square root of 2279894369 is about 47748.2394335121. The cubic root of 2279894369 is about 1316.1485469691.

The spelling of 2279894369 in words is "two billion, two hundred seventy-nine million, eight hundred ninety-four thousand, three hundred sixty-nine".