12008636217187 has 2 divisors, whose sum is σ = 12008636217188. Its totient is φ = 12008636217186.

The previous prime is 12008636217169. The next prime is 12008636217239. The reversal of 12008636217187 is 78171263680021.

It is an a-pointer prime, because the next prime (12008636217239) can be obtained adding 12008636217187 to its sum of digits (52).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12008636217187 is a prime.

It is not a weakly prime, because it can be changed into another prime (12008636217157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6004318108593 + 6004318108594.

It is an arithmetic number, because the mean of its divisors is an integer number (6004318108594).

Almost surely, 2^{12008636217187} is an apocalyptic number.

12008636217187 is a deficient number, since it is larger than the sum of its proper divisors (1).

12008636217187 is an equidigital number, since it uses as much as digits as its factorization.

12008636217187 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1354752, while the sum is 52.

The spelling of 12008636217187 in words is "twelve trillion, eight billion, six hundred thirty-six million, two hundred seventeen thousand, one hundred eighty-seven".