12991804214 has 8 divisors (see below), whose sum is σ = 19502689248. Its totient is φ = 6490907800.

The previous prime is 12991804213. The next prime is 12991804223. The reversal of 12991804214 is 41240819921.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12991804213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2493902 + ... + 2499105.

It is an arithmetic number, because the mean of its divisors is an integer number (2437836156).

Almost surely, 2^12991804214 is an apocalyptic number.

12991804214 is a deficient number, since it is larger than the sum of its proper divisors (6510885034).

12991804214 is a wasteful number, since it uses less digits than its factorization.

12991804214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4994310.

The product of its (nonzero) digits is 41472, while the sum is 41.

The spelling of 12991804214 in words is "twelve billion, nine hundred ninety-one million, eight hundred four thousand, two hundred fourteen".