12459419389 has 2 divisors, whose sum is σ = 12459419390. Its totient is φ = 12459419388.

The previous prime is 12459419381. The next prime is 12459419393. The reversal of 12459419389 is 98391495421.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12292156900 + 167262489 = 110870^2 + 12933^2 .

It is a cyclic number.

It is not a de Polignac number, because 12459419389 - 2³ = 12459419381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12459419381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6229709694 + 6229709695.

It is an arithmetic number, because the mean of its divisors is an integer number (6229709695).

Almost surely, 2^12459419389 is an apocalyptic number.

It is an amenable number.

12459419389 is a deficient number, since it is larger than the sum of its proper divisors (1).

12459419389 is an equidigital number, since it uses as much as digits as its factorization.

12459419389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2799360, while the sum is 55.

The spelling of 12459419389 in words is "twelve billion, four hundred fifty-nine million, four hundred nineteen thousand, three hundred eighty-nine".