12086908849 has 4 divisors (see below), whose sum is σ = 12087323136. Its totient is φ = 12086494564.

The previous prime is 12086908837. The next prime is 12086908877. The reversal of 12086908849 is 94880968021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12086908849 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12086908849.

It is not an unprimeable number, because it can be changed into a prime (12086908879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 159769 + ... + 222934.

It is an arithmetic number, because the mean of its divisors is an integer number (3021830784).

Almost surely, 2^12086908849 is an apocalyptic number.

It is an amenable number.

12086908849 is a deficient number, since it is larger than the sum of its proper divisors (414287).

12086908849 is an equidigital number, since it uses as much as digits as its factorization.

12086908849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414286.

The product of its (nonzero) digits is 1990656, while the sum is 55.

The spelling of 12086908849 in words is "twelve billion, eighty-six million, nine hundred eight thousand, eight hundred forty-nine".