67599945799 has 2 divisors, whose sum is σ = 67599945800. Its totient is φ = 67599945798.

The previous prime is 67599945781. The next prime is 67599945811. The reversal of 67599945799 is 99754999576.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 67599945799 - 2¹¹ = 67599943751 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67599945709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33799972899 + 33799972900.

It is an arithmetic number, because the mean of its divisors is an integer number (33799972900).

Almost surely, 2^67599945799 is an apocalyptic number.

67599945799 is a deficient number, since it is larger than the sum of its proper divisors (1).

67599945799 is an equidigital number, since it uses as much as digits as its factorization.

67599945799 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1736040600, while the sum is 79.

The spelling of 67599945799 in words is "sixty-seven billion, five hundred ninety-nine million, nine hundred forty-five thousand, seven hundred ninety-nine".