67564241513 has 2 divisors, whose sum is σ = 67564241514. Its totient is φ = 67564241512.

The previous prime is 67564241443. The next prime is 67564241527. The reversal of 67564241513 is 31514246576.

67564241513 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 65003071849 + 2561169664 = 254957^2 + 50608^2 .

It is a cyclic number.

It is not a de Polignac number, because 67564241513 - 2⁸ = 67564241257 is a prime.

It is not a weakly prime, because it can be changed into another prime (67564241573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33782120756 + 33782120757.

It is an arithmetic number, because the mean of its divisors is an integer number (33782120757).

Almost surely, 2^67564241513 is an apocalyptic number.

It is an amenable number.

67564241513 is a deficient number, since it is larger than the sum of its proper divisors (1).

67564241513 is an equidigital number, since it uses as much as digits as its factorization.

67564241513 is an evil number, because the sum of its binary digits is even.

The product of its digits is 604800, while the sum is 44.

The spelling of 67564241513 in words is "sixty-seven billion, five hundred sixty-four million, two hundred forty-one thousand, five hundred thirteen".