68143375843 has 2 divisors, whose sum is σ = 68143375844. Its totient is φ = 68143375842.

The previous prime is 68143375829. The next prime is 68143375913. The reversal of 68143375843 is 34857334186.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68143375843 is a prime.

It is not a weakly prime, because it can be changed into another prime (68143375543) 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, 34071687921 + 34071687922.

It is an arithmetic number, because the mean of its divisors is an integer number (34071687922).

Almost surely, 2^68143375843 is an apocalyptic number.

68143375843 is a deficient number, since it is larger than the sum of its proper divisors (1).

68143375843 is an equidigital number, since it uses as much as digits as its factorization.

68143375843 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5806080, while the sum is 52.

The spelling of 68143375843 in words is "sixty-eight billion, one hundred forty-three million, three hundred seventy-five thousand, eight hundred forty-three".