12668136848 has 10 divisors (see below), whose sum is σ = 24544515174. Its totient is φ = 6334068416.

The previous prime is 12668136839. The next prime is 12668136881. The reversal of 12668136848 is 84863186621.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 6860477584 + 5807659264 = 82828^2 + 76208^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12668136848.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 395879261 + ... + 395879292.

Almost surely, 2^12668136848 is an apocalyptic number.

It is an amenable number.

12668136848 is a deficient number, since it is larger than the sum of its proper divisors (11876378326).

12668136848 is an equidigital number, since it uses as much as digits as its factorization.

12668136848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 791758561 (or 791758555 counting only the distinct ones).

The product of its digits is 2654208, while the sum is 53.

The spelling of 12668136848 in words is "twelve billion, six hundred sixty-eight million, one hundred thirty-six thousand, eight hundred forty-eight".