18296458489 has 2 divisors, whose sum is σ = 18296458490. Its totient is φ = 18296458488.

The previous prime is 18296458487. The next prime is 18296458493. The reversal of 18296458489 is 98485469281.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12198098025 + 6098360464 = 110445^2 + 78092^2 .

It is a cyclic number.

It is not a de Polignac number, because 18296458489 - 2¹ = 18296458487 is a prime.

Together with 18296458487, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 18296458489.

It is not a weakly prime, because it can be changed into another prime (18296458487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9148229244 + 9148229245.

It is an arithmetic number, because the mean of its divisors is an integer number (9148229245).

Almost surely, 2^18296458489 is an apocalyptic number.

It is an amenable number.

18296458489 is a deficient number, since it is larger than the sum of its proper divisors (1).

18296458489 is an equidigital number, since it uses as much as digits as its factorization.

18296458489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 39813120, while the sum is 64.

The spelling of 18296458489 in words is "eighteen billion, two hundred ninety-six million, four hundred fifty-eight thousand, four hundred eighty-nine".