12348421838 has 16 divisors (see below), whose sum is σ = 19403189280. Its totient is φ = 5882781696.

The previous prime is 12348421837. The next prime is 12348421849. The reversal of 12348421838 is 83812484321.

12348421838 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12348421837) 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, 510443 + ... + 534086.

It is an arithmetic number, because the mean of its divisors is an integer number (1212699330).

Almost surely, 2^12348421838 is an apocalyptic number.

12348421838 is a deficient number, since it is larger than the sum of its proper divisors (7054767442).

12348421838 is a wasteful number, since it uses less digits than its factorization.

12348421838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1044811.

The product of its digits is 294912, while the sum is 44.

The spelling of 12348421838 in words is "twelve billion, three hundred forty-eight million, four hundred twenty-one thousand, eight hundred thirty-eight".