2228042777 has 2 divisors, whose sum is σ = 2228042778. Its totient is φ = 2228042776.

The previous prime is 2228042737. The next prime is 2228042813. The reversal of 2228042777 is 7772408222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2024010121 + 204032656 = 44989^2 + 14284^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2228042777 is a prime.

It is a super-2 number, since 2×2228042777² = 9928349232283743458, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2228042737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1114021388 + 1114021389.

It is an arithmetic number, because the mean of its divisors is an integer number (1114021389).

Almost surely, 2^2228042777 is an apocalyptic number.

It is an amenable number.

2228042777 is a deficient number, since it is larger than the sum of its proper divisors (1).

2228042777 is an equidigital number, since it uses as much as digits as its factorization.

2228042777 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 175616, while the sum is 41.

The square root of 2228042777 is about 47202.1480125640. The cubic root of 2228042777 is about 1306.0942221779.

The spelling of 2228042777 in words is "two billion, two hundred twenty-eight million, forty-two thousand, seven hundred seventy-seven".