12647444683 has 2 divisors, whose sum is σ = 12647444684. Its totient is φ = 12647444682.

The previous prime is 12647444681. The next prime is 12647444717. The reversal of 12647444683 is 38644474621.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12647444683 - 2¹ = 12647444681 is a prime.

Together with 12647444681, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (12647444681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6323722341 + 6323722342.

It is an arithmetic number, because the mean of its divisors is an integer number (6323722342).

Almost surely, 2^12647444683 is an apocalyptic number.

12647444683 is a deficient number, since it is larger than the sum of its proper divisors (1).

12647444683 is an equidigital number, since it uses as much as digits as its factorization.

12647444683 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3096576, while the sum is 49.

The spelling of 12647444683 in words is "twelve billion, six hundred forty-seven million, four hundred forty-four thousand, six hundred eighty-three".