12944666973 has 48 divisors (see below), whose sum is σ = 20223107520. Its totient is φ = 7343529984.

The previous prime is 12944666971. The next prime is 12944666989. The reversal of 12944666973 is 37966644921.

It is a happy number.

It is not a de Polignac number, because 12944666973 - 2¹ = 12944666971 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12944666971) 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 47 ways as a sum of consecutive naturals, for example, 16832733 + ... + 16833501.

It is an arithmetic number, because the mean of its divisors is an integer number (421314740).

Almost surely, 2^12944666973 is an apocalyptic number.

It is an amenable number.

12944666973 is a deficient number, since it is larger than the sum of its proper divisors (7278440547).

12944666973 is a wasteful number, since it uses less digits than its factorization.

12944666973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1466 (or 1459 counting only the distinct ones).

The product of its digits is 11757312, while the sum is 57.

The spelling of 12944666973 in words is "twelve billion, nine hundred forty-four million, six hundred sixty-six thousand, nine hundred seventy-three".