12427238305 has 8 divisors (see below), whose sum is σ = 15393740544. Its totient is φ = 9621087600.

The previous prime is 12427238281. The next prime is 12427238309. The reversal of 12427238305 is 50383272421.

12427238305 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12427238305 - 2¹⁷ = 12427107233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12427238309) 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 7 ways as a sum of consecutive naturals, for example, 40087711 + ... + 40088020.

It is an arithmetic number, because the mean of its divisors is an integer number (1924217568).

Almost surely, 2^12427238305 is an apocalyptic number.

It is an amenable number.

12427238305 is a deficient number, since it is larger than the sum of its proper divisors (2966502239).

12427238305 is an equidigital number, since it uses as much as digits as its factorization.

12427238305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80175767.

The product of its (nonzero) digits is 80640, while the sum is 37.

The spelling of 12427238305 in words is "twelve billion, four hundred twenty-seven million, two hundred thirty-eight thousand, three hundred five".