12967664912 has 10 divisors (see below), whose sum is σ = 25124850798. Its totient is φ = 6483832448.

The previous prime is 12967664893. The next prime is 12967664921. The reversal of 12967664912 is 21946676921.

It can be written as a sum of positive squares in only one way, i.e., 12428682256 + 538982656 = 111484^2 + 23216^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 405239513 + ... + 405239544.

Almost surely, 2^12967664912 is an apocalyptic number.

It is an amenable number.

12967664912 is a deficient number, since it is larger than the sum of its proper divisors (12157185886).

12967664912 is an equidigital number, since it uses as much as digits as its factorization.

12967664912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 810479065 (or 810479059 counting only the distinct ones).

The product of its digits is 1959552, while the sum is 53.

The spelling of 12967664912 in words is "twelve billion, nine hundred sixty-seven million, six hundred sixty-four thousand, nine hundred twelve".