68071385099 has 2 divisors, whose sum is σ = 68071385100. Its totient is φ = 68071385098.

The previous prime is 68071385077. The next prime is 68071385111. The reversal of 68071385099 is 99058317086.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68071385099 is a prime.

It is not a weakly prime, because it can be changed into another prime (68071385059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34035692549 + 34035692550.

It is an arithmetic number, because the mean of its divisors is an integer number (34035692550).

Almost surely, 2^68071385099 is an apocalyptic number.

68071385099 is a deficient number, since it is larger than the sum of its proper divisors (1).

68071385099 is an equidigital number, since it uses as much as digits as its factorization.

68071385099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3265920, while the sum is 56.

The spelling of 68071385099 in words is "sixty-eight billion, seventy-one million, three hundred eighty-five thousand, ninety-nine".