68143838267 has 2 divisors, whose sum is σ = 68143838268. Its totient is φ = 68143838266.

The previous prime is 68143838251. The next prime is 68143838281. The reversal of 68143838267 is 76283834186.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68143838267 - 2⁴ = 68143838251 is a prime.

It is not a weakly prime, because it can be changed into another prime (68143838227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34071919133 + 34071919134.

It is an arithmetic number, because the mean of its divisors is an integer number (34071919134).

Almost surely, 2^68143838267 is an apocalyptic number.

68143838267 is a deficient number, since it is larger than the sum of its proper divisors (1).

68143838267 is an equidigital number, since it uses as much as digits as its factorization.

68143838267 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9289728, while the sum is 56.

The spelling of 68143838267 in words is "sixty-eight billion, one hundred forty-three million, eight hundred thirty-eight thousand, two hundred sixty-seven".