12648350661337 has 2 divisors, whose sum is σ = 12648350661338. Its totient is φ = 12648350661336.

The previous prime is 12648350661319. The next prime is 12648350661377. The reversal of 12648350661337 is 73316605384621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8546992578576 + 4101358082761 = 2923524^2 + 2025181^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12648350661337 is a prime.

It is not a weakly prime, because it can be changed into another prime (12648350661377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6324175330668 + 6324175330669.

It is an arithmetic number, because the mean of its divisors is an integer number (6324175330669).

Almost surely, 2^{12648350661337} is an apocalyptic number.

It is an amenable number.

12648350661337 is a deficient number, since it is larger than the sum of its proper divisors (1).

12648350661337 is an equidigital number, since it uses as much as digits as its factorization.

12648350661337 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13063680, while the sum is 55.

The spelling of 12648350661337 in words is "twelve trillion, six hundred forty-eight billion, three hundred fifty million, six hundred sixty-one thousand, three hundred thirty-seven".