12648180709 has 2 divisors, whose sum is σ = 12648180710. Its totient is φ = 12648180708.

The previous prime is 12648180697. The next prime is 12648180767. The reversal of 12648180709 is 90708184621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9608312484 + 3039868225 = 98022^2 + 55135^2 .

It is an emirp because it is prime and its reverse (90708184621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12648180709 - 2⁷ = 12648180581 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12648181709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6324090354 + 6324090355.

It is an arithmetic number, because the mean of its divisors is an integer number (6324090355).

Almost surely, 2^12648180709 is an apocalyptic number.

It is an amenable number.

12648180709 is a deficient number, since it is larger than the sum of its proper divisors (1).

12648180709 is an equidigital number, since it uses as much as digits as its factorization.

12648180709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 193536, while the sum is 46.

The spelling of 12648180709 in words is "twelve billion, six hundred forty-eight million, one hundred eighty thousand, seven hundred nine".