12459793427 has 4 divisors (see below), whose sum is σ = 13001523600. Its totient is φ = 11918063256.

The previous prime is 12459793417. The next prime is 12459793481. The reversal of 12459793427 is 72439795421.

12459793427 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12459793427 - 2¹⁸ = 12459531283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12459793417) 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 in 3 ways as a sum of consecutive naturals, for example, 270865052 + ... + 270865097.

It is an arithmetic number, because the mean of its divisors is an integer number (3250380900).

Almost surely, 2^12459793427 is an apocalyptic number.

12459793427 is a deficient number, since it is larger than the sum of its proper divisors (541730173).

12459793427 is an equidigital number, since it uses as much as digits as its factorization.

12459793427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 541730172.

The product of its digits is 3810240, while the sum is 53.

The spelling of 12459793427 in words is "twelve billion, four hundred fifty-nine million, seven hundred ninety-three thousand, four hundred twenty-seven".