12703905668 has 6 divisors (see below), whose sum is σ = 22231834926. Its totient is φ = 6351952832.

The previous prime is 12703905667. The next prime is 12703905733. The reversal of 12703905668 is 86650930721.

It can be written as a sum of positive squares in only one way, i.e., 10886418244 + 1817487424 = 104338^2 + 42632^2 .

It is a super-2 number, since 2×12703905668² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12703905661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1587988205 + ... + 1587988212.

It is an arithmetic number, because the mean of its divisors is an integer number (3705305821).

Almost surely, 2^12703905668 is an apocalyptic number.

It is an amenable number.

12703905668 is a deficient number, since it is larger than the sum of its proper divisors (9527929258).

12703905668 is a wasteful number, since it uses less digits than its factorization.

12703905668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3175976421 (or 3175976419 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 47.

The spelling of 12703905668 in words is "twelve billion, seven hundred three million, nine hundred five thousand, six hundred sixty-eight".