4989783889 has 2 divisors, whose sum is σ = 4989783890. Its totient is φ = 4989783888.

The previous prime is 4989783803. The next prime is 4989783913. The reversal of 4989783889 is 9883879894.

4989783889 is digitally balanced in base 3, 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., 4108169025 + 881614864 = 64095^2 + 29692^2 .

It is a cyclic number.

It is not a de Polignac number, because 4989783889 - 2⁹ = 4989783377 is a prime.

It is not a weakly prime, because it can be changed into another prime (4989783289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2494891944 + 2494891945.

It is an arithmetic number, because the mean of its divisors is an integer number (2494891945).

Almost surely, 2^4989783889 is an apocalyptic number.

It is an amenable number.

4989783889 is a deficient number, since it is larger than the sum of its proper divisors (1).

4989783889 is an equidigital number, since it uses as much as digits as its factorization.

4989783889 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 250822656, while the sum is 73.

The square root of 4989783889 is about 70638.4023672676. The cubic root of 4989783889 is about 1708.8105323105.

The spelling of 4989783889 in words is "four billion, nine hundred eighty-nine million, seven hundred eighty-three thousand, eight hundred eighty-nine".