12971766689 has 16 divisors (see below), whose sum is σ = 14907369600. Its totient is φ = 11056942464.

The previous prime is 12971766679. The next prime is 12971766737. The reversal of 12971766689 is 98666717921.

It is a cyclic number.

It is not a de Polignac number, because 12971766689 - 2²⁸ = 12703331233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12971766679) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1065374 + ... + 1077480.

It is an arithmetic number, because the mean of its divisors is an integer number (931710600).

Almost surely, 2^12971766689 is an apocalyptic number.

It is an amenable number.

12971766689 is a deficient number, since it is larger than the sum of its proper divisors (1935602911).

12971766689 is a wasteful number, since it uses less digits than its factorization.

12971766689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12952.

The product of its digits is 13716864, while the sum is 62.

The spelling of 12971766689 in words is "twelve billion, nine hundred seventy-one million, seven hundred sixty-six thousand, six hundred eighty-nine".