12000009986 has 8 divisors (see below), whose sum is σ = 18003166464. Its totient is φ = 5998954500.

The previous prime is 12000009979. The next prime is 12000009991. The reversal of 12000009986 is 68990000021.

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

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 510890 + ... + 533861.

It is an arithmetic number, because the mean of its divisors is an integer number (2250395808).

Almost surely, 2^12000009986 is an apocalyptic number.

12000009986 is a deficient number, since it is larger than the sum of its proper divisors (6003156478).

12000009986 is a wasteful number, since it uses less digits than its factorization.

12000009986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1050496.

The product of its (nonzero) digits is 7776, while the sum is 35.

The spelling of 12000009986 in words is "twelve billion, nine thousand, nine hundred eighty-six".