12780518683 has 2 divisors, whose sum is σ = 12780518684. Its totient is φ = 12780518682.

The previous prime is 12780518677. The next prime is 12780518711. The reversal of 12780518683 is 38681508721.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12780518683 - 2⁹ = 12780518171 is a prime.

It is not a weakly prime, because it can be changed into another prime (12780518623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6390259341 + 6390259342.

It is an arithmetic number, because the mean of its divisors is an integer number (6390259342).

Almost surely, 2^12780518683 is an apocalyptic number.

12780518683 is a deficient number, since it is larger than the sum of its proper divisors (1).

12780518683 is an equidigital number, since it uses as much as digits as its factorization.

12780518683 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 645120, while the sum is 49.

The spelling of 12780518683 in words is "twelve billion, seven hundred eighty million, five hundred eighteen thousand, six hundred eighty-three".