68335684019 has 2 divisors, whose sum is σ = 68335684020. Its totient is φ = 68335684018.

The previous prime is 68335683991. The next prime is 68335684051. The reversal of 68335684019 is 91048653386.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68335684019 - 2⁸ = 68335683763 is a prime.

It is a super-3 number, since 3×68335684019³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (68335684099) 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, 34167842009 + 34167842010.

It is an arithmetic number, because the mean of its divisors is an integer number (34167842010).

Almost surely, 2^68335684019 is an apocalyptic number.

68335684019 is a deficient number, since it is larger than the sum of its proper divisors (1).

68335684019 is an equidigital number, since it uses as much as digits as its factorization.

68335684019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3732480, while the sum is 53.

The spelling of 68335684019 in words is "sixty-eight billion, three hundred thirty-five million, six hundred eighty-four thousand, nineteen".