12354545279 has 2 divisors, whose sum is σ = 12354545280. Its totient is φ = 12354545278.

The previous prime is 12354545251. The next prime is 12354545297. The reversal of 12354545279 is 97254545321.

Together with next prime (12354545297) 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 12354545279 - 2²⁴ = 12337768063 is a prime.

It is a super-2 number, since 2×12354545279² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12354545179) 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, 6177272639 + 6177272640.

It is an arithmetic number, because the mean of its divisors is an integer number (6177272640).

Almost surely, 2^12354545279 is an apocalyptic number.

12354545279 is a deficient number, since it is larger than the sum of its proper divisors (1).

12354545279 is an equidigital number, since it uses as much as digits as its factorization.

12354545279 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1512000, while the sum is 47.

The spelling of 12354545279 in words is "twelve billion, three hundred fifty-four million, five hundred forty-five thousand, two hundred seventy-nine".