518041790489 has 2 divisors, whose sum is σ = 518041790490. Its totient is φ = 518041790488.

The previous prime is 518041790477. The next prime is 518041790521. The reversal of 518041790489 is 984097140815.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 430248100489 + 87793690000 = 655933^2 + 296300^2 .

It is a cyclic number.

It is not a de Polignac number, because 518041790489 - 2⁴ = 518041790473 is a prime.

It is not a weakly prime, because it can be changed into another prime (518041790089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 259020895244 + 259020895245.

It is an arithmetic number, because the mean of its divisors is an integer number (259020895245).

Almost surely, 2^518041790489 is an apocalyptic number.

It is an amenable number.

518041790489 is a deficient number, since it is larger than the sum of its proper divisors (1).

518041790489 is an equidigital number, since it uses as much as digits as its factorization.

518041790489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2903040, while the sum is 56.

The spelling of 518041790489 in words is "five hundred eighteen billion, forty-one million, seven hundred ninety thousand, four hundred eighty-nine".