4428722489 has 2 divisors, whose sum is σ = 4428722490. Its totient is φ = 4428722488.

The previous prime is 4428722447. The next prime is 4428722497. The reversal of 4428722489 is 9842278244.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3611048464 + 817674025 = 60092^2 + 28595^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4428722489 is a prime.

It is a super-2 number, since 2×4428722489² = 39227165769148710242, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4428728489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2214361244 + 2214361245.

It is an arithmetic number, because the mean of its divisors is an integer number (2214361245).

Almost surely, 2^4428722489 is an apocalyptic number.

It is an amenable number.

4428722489 is a deficient number, since it is larger than the sum of its proper divisors (1).

4428722489 is an equidigital number, since it uses as much as digits as its factorization.

4428722489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2064384, while the sum is 50.

The square root of 4428722489 is about 66548.6475369710. The cubic root of 4428722489 is about 1642.2004085738.

The spelling of 4428722489 in words is "four billion, four hundred twenty-eight million, seven hundred twenty-two thousand, four hundred eighty-nine".