12448446847 has 4 divisors (see below), whose sum is σ = 13103628280. Its totient is φ = 11793265416.

The previous prime is 12448446841. The next prime is 12448446851. The reversal of 12448446847 is 74864484421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74864484421 = 5857 ⋅12782053.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12448446847 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12448446794 and 12448446803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12448446841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 327590688 + ... + 327590725.

It is an arithmetic number, because the mean of its divisors is an integer number (3275907070).

Almost surely, 2^12448446847 is an apocalyptic number.

12448446847 is a deficient number, since it is larger than the sum of its proper divisors (655181433).

12448446847 is an equidigital number, since it uses as much as digits as its factorization.

12448446847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 655181432.

The product of its digits is 5505024, while the sum is 52.

The spelling of 12448446847 in words is "twelve billion, four hundred forty-eight million, four hundred forty-six thousand, eight hundred forty-seven".