12908666680921 has 8 divisors (see below), whose sum is σ = 14083546377888. Its totient is φ = 11734014408000.

The previous prime is 12908666680909. The next prime is 12908666680933.

12908666680921 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (12908666680909) and next prime (12908666680933).

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-12908666680921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12908666680981) 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, 56737315 + ... + 56964376.

It is an arithmetic number, because the mean of its divisors is an integer number (1760443297236).

Almost surely, 2^{12908666680921} is an apocalyptic number.

12908666680921 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12908666680921 is a deficient number, since it is larger than the sum of its proper divisors (1174879696967).

12908666680921 is a wasteful number, since it uses less digits than its factorization.

12908666680921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113712023.

The product of its (nonzero) digits is 26873856, while the sum is 64.

The spelling of 12908666680921 in words is "twelve trillion, nine hundred eight billion, six hundred sixty-six million, six hundred eighty thousand, nine hundred twenty-one".