12838385668 has 6 divisors (see below), whose sum is σ = 22467174926. Its totient is φ = 6419192832.

The previous prime is 12838385641. The next prime is 12838385683. The reversal of 12838385668 is 86658383821.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 10142906944 + 2695478724 = 100712^2 + 51918^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1604798205 + ... + 1604798212.

Almost surely, 2^12838385668 is an apocalyptic number.

It is an amenable number.

12838385668 is a deficient number, since it is larger than the sum of its proper divisors (9628789258).

12838385668 is a wasteful number, since it uses less digits than its factorization.

12838385668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3209596421 (or 3209596419 counting only the distinct ones).

The product of its digits is 13271040, while the sum is 58.

The spelling of 12838385668 in words is "twelve billion, eight hundred thirty-eight million, three hundred eighty-five thousand, six hundred sixty-eight".