2229772817 has 2 divisors, whose sum is σ = 2229772818. Its totient is φ = 2229772816.

The previous prime is 2229772813. The next prime is 2229772837. The reversal of 2229772817 is 7182779222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2137305361 + 92467456 = 46231^2 + 9616^2 .

It is a cyclic number.

It is not a de Polignac number, because 2229772817 - 2² = 2229772813 is a prime.

It is not a weakly prime, because it can be changed into another prime (2229772813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1114886408 + 1114886409.

It is an arithmetic number, because the mean of its divisors is an integer number (1114886409).

Almost surely, 2^2229772817 is an apocalyptic number.

It is an amenable number.

2229772817 is a deficient number, since it is larger than the sum of its proper divisors (1).

2229772817 is an equidigital number, since it uses as much as digits as its factorization.

2229772817 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 395136, while the sum is 47.

The square root of 2229772817 is about 47220.4703174375. The cubic root of 2229772817 is about 1306.4321885576.

The spelling of 2229772817 in words is "two billion, two hundred twenty-nine million, seven hundred seventy-two thousand, eight hundred seventeen".