12640241533069 has 2 divisors, whose sum is σ = 12640241533070. Its totient is φ = 12640241533068.

The previous prime is 12640241533027. The next prime is 12640241533079. The reversal of 12640241533069 is 96033514204621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10805598372969 + 1834643160100 = 3287187^2 + 1354490^2 .

It is a cyclic number.

It is not a de Polignac number, because 12640241533069 - 2⁹ = 12640241532557 is a prime.

It is a super-2 number, since 2×12640241533069² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12640241533079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6320120766534 + 6320120766535.

It is an arithmetic number, because the mean of its divisors is an integer number (6320120766535).

Almost surely, 2^{12640241533069} is an apocalyptic number.

It is an amenable number.

12640241533069 is a deficient number, since it is larger than the sum of its proper divisors (1).

12640241533069 is an equidigital number, since it uses as much as digits as its factorization.

12640241533069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 933120, while the sum is 46.

The spelling of 12640241533069 in words is "twelve trillion, six hundred forty billion, two hundred forty-one million, five hundred thirty-three thousand, sixty-nine".