12686490976 has 24 divisors (see below), whose sum is σ = 25009397784. Its totient is φ = 6334897920.

The previous prime is 12686490967. The next prime is 12686490977. The reversal of 12686490976 is 67909468621.

It is a happy number.

12686490976 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 12686490976.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12686490977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 236130 + ... + 284833.

It is an arithmetic number, because the mean of its divisors is an integer number (1042058241).

Almost surely, 2^12686490976 is an apocalyptic number.

12686490976 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12686490976 is a deficient number, since it is larger than the sum of its proper divisors (12322906808).

12686490976 is an equidigital number, since it uses as much as digits as its factorization.

12686490976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 521734 (or 521726 counting only the distinct ones).

The product of its (nonzero) digits is 7838208, while the sum is 58.

The spelling of 12686490976 in words is "twelve billion, six hundred eighty-six million, four hundred ninety thousand, nine hundred seventy-six".