12643824371 has 8 divisors (see below), whose sum is σ = 12989271264. Its totient is φ = 12298573440.

The previous prime is 12643824367. The next prime is 12643824383. The reversal of 12643824371 is 17342834621.

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 12643824371 - 2² = 12643824367 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12643824301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86891 + ... + 181211.

It is an arithmetic number, because the mean of its divisors is an integer number (1623658908).

Almost surely, 2^12643824371 is an apocalyptic number.

12643824371 is a deficient number, since it is larger than the sum of its proper divisors (345446893).

12643824371 is an equidigital number, since it uses as much as digits as its factorization.

12643824371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97981.

The product of its digits is 193536, while the sum is 41.

The spelling of 12643824371 in words is "twelve billion, six hundred forty-three million, eight hundred twenty-four thousand, three hundred seventy-one".