12643169343 has 16 divisors (see below), whose sum is σ = 19268225280. Its totient is φ = 7223751936.

The previous prime is 12643169339. The next prime is 12643169359. The reversal of 12643169343 is 34396134621.

It is not a de Polignac number, because 12643169343 - 2² = 12643169339 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12643169295 and 12643169304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12643169543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 153796 + ... + 221222.

It is an arithmetic number, because the mean of its divisors is an integer number (1204264080).

Almost surely, 2^12643169343 is an apocalyptic number.

12643169343 is a deficient number, since it is larger than the sum of its proper divisors (6625055937).

12643169343 is an equidigital number, since it uses as much as digits as its factorization.

12643169343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76366.

The product of its digits is 279936, while the sum is 42.

The spelling of 12643169343 in words is "twelve billion, six hundred forty-three million, one hundred sixty-nine thousand, three hundred forty-three".