4989689899 has 2 divisors, whose sum is σ = 4989689900. Its totient is φ = 4989689898.

The previous prime is 4989689891. The next prime is 4989689923. The reversal of 4989689899 is 9989869894.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4989689899 - 2³ = 4989689891 is a prime.

It is not a weakly prime, because it can be changed into another prime (4989689891) 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, 2494844949 + 2494844950.

It is an arithmetic number, because the mean of its divisors is an integer number (2494844950).

Almost surely, 2^4989689899 is an apocalyptic number.

4989689899 is a deficient number, since it is larger than the sum of its proper divisors (1).

4989689899 is an equidigital number, since it uses as much as digits as its factorization.

4989689899 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 725594112, while the sum is 79.

The square root of 4989689899 is about 70637.7370744562. The cubic root of 4989689899 is about 1708.7998029140.

The spelling of 4989689899 in words is "four billion, nine hundred eighty-nine million, six hundred eighty-nine thousand, eight hundred ninety-nine".