12981065313628 has 24 divisors (see below), whose sum is σ = 22828820991200. Its totient is φ = 6458576724288.

The previous prime is 12981065313613. The next prime is 12981065313631. The reversal of 12981065313628 is 82631356018921.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2322000 + ... + 5599447.

Almost surely, 2^{12981065313628} is an apocalyptic number.

It is an amenable number.

12981065313628 is a deficient number, since it is larger than the sum of its proper divisors (9847755677572).

12981065313628 is a wasteful number, since it uses less digits than its factorization.

12981065313628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7923469 (or 7923467 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 55.

The spelling of 12981065313628 in words is "twelve trillion, nine hundred eighty-one billion, sixty-five million, three hundred thirteen thousand, six hundred twenty-eight".