12043402568 has 8 divisors (see below), whose sum is σ = 22581379830. Its totient is φ = 6021701280.

The previous prime is 12043402549. The next prime is 12043402571. The reversal of 12043402568 is 86520434021.

It can be written as a sum of positive squares in only one way, i.e., 6815823364 + 5227579204 = 82558^2 + 72302^2 .

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, 752712653 + ... + 752712668.

Almost surely, 2^12043402568 is an apocalyptic number.

It is an amenable number.

12043402568 is a deficient number, since it is larger than the sum of its proper divisors (10537977262).

12043402568 is a wasteful number, since it uses less digits than its factorization.

12043402568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1505425327 (or 1505425323 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 35.

Adding to 12043402568 its reverse (86520434021), we get a palindrome (98563836589).

The spelling of 12043402568 in words is "twelve billion, forty-three million, four hundred two thousand, five hundred sixty-eight".