12668782071 has 32 divisors (see below), whose sum is σ = 18508089600. Its totient is φ = 7644487680.

The previous prime is 12668782039. The next prime is 12668782079. The reversal of 12668782071 is 17028786621.

It is not a de Polignac number, because 12668782071 - 2⁵ = 12668782039 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12668782071.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12668782079) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11850525 + ... + 11851593.

It is an arithmetic number, because the mean of its divisors is an integer number (578377800).

Almost surely, 2^12668782071 is an apocalyptic number.

12668782071 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12668782071 is a deficient number, since it is larger than the sum of its proper divisors (5839307529).

12668782071 is a wasteful number, since it uses less digits than its factorization.

12668782071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2319.

The product of its (nonzero) digits is 451584, while the sum is 48.

The spelling of 12668782071 in words is "twelve billion, six hundred sixty-eight million, seven hundred eighty-two thousand, seventy-one".