12663981373 has 8 divisors (see below), whose sum is σ = 12801559680. Its totient is φ = 12526546560.

The previous prime is 12663981353. The next prime is 12663981391. The reversal of 12663981373 is 37318936621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12663981373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12663981353) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 146598 + ... + 216376.

It is an arithmetic number, because the mean of its divisors is an integer number (1600194960).

Almost surely, 2^12663981373 is an apocalyptic number.

It is an amenable number.

12663981373 is a deficient number, since it is larger than the sum of its proper divisors (137578307).

12663981373 is an equidigital number, since it uses as much as digits as its factorization.

12663981373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71747.

The product of its digits is 979776, while the sum is 49.

The spelling of 12663981373 in words is "twelve billion, six hundred sixty-three million, nine hundred eighty-one thousand, three hundred seventy-three".