12884743912 has 8 divisors (see below), whose sum is σ = 24158894850. Its totient is φ = 6442371952.

The previous prime is 12884743909. The next prime is 12884743973. The reversal of 12884743912 is 21934748821.

It can be written as a sum of positive squares in only one way, i.e., 10929866116 + 1954877796 = 104546^2 + 44214^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 805296487 + ... + 805296502.

Almost surely, 2^12884743912 is an apocalyptic number.

It is an amenable number.

12884743912 is a deficient number, since it is larger than the sum of its proper divisors (11274150938).

12884743912 is a wasteful number, since it uses less digits than its factorization.

12884743912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1610592995 (or 1610592991 counting only the distinct ones).

The product of its digits is 774144, while the sum is 49.

The spelling of 12884743912 in words is "twelve billion, eight hundred eighty-four million, seven hundred forty-three thousand, nine hundred twelve".