12671934446 has 4 divisors (see below), whose sum is σ = 19007901672. Its totient is φ = 6335967222.

The previous prime is 12671934437. The next prime is 12671934557. The reversal of 12671934446 is 64443917621.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 12671934446.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 3167983610 + ... + 3167983613.

It is an arithmetic number, because the mean of its divisors is an integer number (4751975418).

Almost surely, 2^12671934446 is an apocalyptic number.

12671934446 is a deficient number, since it is larger than the sum of its proper divisors (6335967226).

12671934446 is an equidigital number, since it uses as much as digits as its factorization.

12671934446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6335967225.

The product of its digits is 870912, while the sum is 47.

The spelling of 12671934446 in words is "twelve billion, six hundred seventy-one million, nine hundred thirty-four thousand, four hundred forty-six".