12646487012 has 6 divisors (see below), whose sum is σ = 22131352278. Its totient is φ = 6323243504.

The previous prime is 12646486991. The next prime is 12646487027. The reversal of 12646487012 is 21078464621.

12646487012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 7166638336 + 5479848676 = 84656^2 + 74026^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 1580810873 + ... + 1580810880.

It is an arithmetic number, because the mean of its divisors is an integer number (3688558713).

Almost surely, 2^12646487012 is an apocalyptic number.

It is an amenable number.

12646487012 is a deficient number, since it is larger than the sum of its proper divisors (9484865266).

12646487012 is a wasteful number, since it uses less digits than its factorization.

12646487012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3161621757 (or 3161621755 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 41.

The spelling of 12646487012 in words is "twelve billion, six hundred forty-six million, four hundred eighty-seven thousand, twelve".