67668137143 has 2 divisors, whose sum is σ = 67668137144. Its totient is φ = 67668137142.

The previous prime is 67668137113. The next prime is 67668137171. The reversal of 67668137143 is 34173186676.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-67668137143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67668137113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33834068571 + 33834068572.

It is an arithmetic number, because the mean of its divisors is an integer number (33834068572).

Almost surely, 2^67668137143 is an apocalyptic number.

67668137143 is a deficient number, since it is larger than the sum of its proper divisors (1).

67668137143 is an equidigital number, since it uses as much as digits as its factorization.

67668137143 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3048192, while the sum is 52.

The spelling of 67668137143 in words is "sixty-seven billion, six hundred sixty-eight million, one hundred thirty-seven thousand, one hundred forty-three".