12258558479 has 2 divisors, whose sum is σ = 12258558480. Its totient is φ = 12258558478.

The previous prime is 12258558437. The next prime is 12258558497. The reversal of 12258558479 is 97485585221.

12258558479 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with next prime (12258558497) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12258558479 - 2⁸ = 12258558223 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12258558409) 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, 6129279239 + 6129279240.

It is an arithmetic number, because the mean of its divisors is an integer number (6129279240).

Almost surely, 2^12258558479 is an apocalyptic number.

12258558479 is a deficient number, since it is larger than the sum of its proper divisors (1).

12258558479 is an equidigital number, since it uses as much as digits as its factorization.

12258558479 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8064000, while the sum is 56.

The spelling of 12258558479 in words is "twelve billion, two hundred fifty-eight million, five hundred fifty-eight thousand, four hundred seventy-nine".