12945969843 has 8 divisors (see below), whose sum is σ = 17301344256. Its totient is φ = 8610621000.

The previous prime is 12945969823. The next prime is 12945969847. The reversal of 12945969843 is 34896954921.

12945969843 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 12945969843 - 2⁵ = 12945969811 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12945969847) 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, 5004883 + ... + 5007468.

It is an arithmetic number, because the mean of its divisors is an integer number (2162668032).

Almost surely, 2^12945969843 is an apocalyptic number.

12945969843 is a deficient number, since it is larger than the sum of its proper divisors (4355374413).

12945969843 is a wasteful number, since it uses less digits than its factorization.

12945969843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10012785.

The product of its digits is 16796160, while the sum is 60.

The spelling of 12945969843 in words is "twelve billion, nine hundred forty-five million, nine hundred sixty-nine thousand, eight hundred forty-three".