68712664211 has 2 divisors, whose sum is σ = 68712664212. Its totient is φ = 68712664210.

The previous prime is 68712664187. The next prime is 68712664271. The reversal of 68712664211 is 11246621786.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68712664211 - 2²⁶ = 68645555347 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (68712664271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34356332105 + 34356332106.

It is an arithmetic number, because the mean of its divisors is an integer number (34356332106).

Almost surely, 2^68712664211 is an apocalyptic number.

68712664211 is a deficient number, since it is larger than the sum of its proper divisors (1).

68712664211 is an equidigital number, since it uses as much as digits as its factorization.

68712664211 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 193536, while the sum is 44.

The spelling of 68712664211 in words is "sixty-eight billion, seven hundred twelve million, six hundred sixty-four thousand, two hundred eleven".