289989664439 has 2 divisors, whose sum is σ = 289989664440. Its totient is φ = 289989664438.

The previous prime is 289989664379. The next prime is 289989664451. The reversal of 289989664439 is 934466989982.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 289989664439 - 2¹⁶ = 289989598903 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 289989664439.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (289989664339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 144994832219 + 144994832220.

It is an arithmetic number, because the mean of its divisors is an integer number (144994832220).

Almost surely, 2^289989664439 is an apocalyptic number.

289989664439 is a deficient number, since it is larger than the sum of its proper divisors (1).

289989664439 is an equidigital number, since it uses as much as digits as its factorization.

289989664439 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1451188224, while the sum is 77.

The spelling of 289989664439 in words is "two hundred eighty-nine billion, nine hundred eighty-nine million, six hundred sixty-four thousand, four hundred thirty-nine".