12847105849 has 8 divisors (see below), whose sum is σ = 13322429120. Its totient is φ = 12378524976.

The previous prime is 12847105801. The next prime is 12847105889. The reversal of 12847105849 is 94850174821.

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

It is a cyclic number.

It is not a de Polignac number, because 12847105849 - 2²⁷ = 12712888121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12847105889) 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 7 ways as a sum of consecutive naturals, for example, 1681719 + ... + 1689340.

It is an arithmetic number, because the mean of its divisors is an integer number (1665303640).

Almost surely, 2^12847105849 is an apocalyptic number.

It is an amenable number.

12847105849 is a deficient number, since it is larger than the sum of its proper divisors (475323271).

12847105849 is a wasteful number, since it uses less digits than its factorization.

12847105849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3371199.

The product of its (nonzero) digits is 645120, while the sum is 49.

The spelling of 12847105849 in words is "twelve billion, eight hundred forty-seven million, one hundred five thousand, eight hundred forty-nine".