68544599 has 2 divisors, whose sum is σ = 68544600. Its totient is φ = 68544598.

The previous prime is 68544583. The next prime is 68544601. The reversal of 68544599 is 99544586.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68544599 - 2⁴ = 68544583 is a prime.

Together with 68544601, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68540599) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34272299 + 34272300.

It is an arithmetic number, because the mean of its divisors is an integer number (34272300).

Almost surely, 2^68544599 is an apocalyptic number.

68544599 is a deficient number, since it is larger than the sum of its proper divisors (1).

68544599 is an equidigital number, since it uses as much as digits as its factorization.

68544599 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1555200, while the sum is 50.

The square root of 68544599 is about 8279.1665643348. The cubic root of 68544599 is about 409.2522540065.

The spelling of 68544599 in words is "sixty-eight million, five hundred forty-four thousand, five hundred ninety-nine".