68797165841 has 2 divisors, whose sum is σ = 68797165842. Its totient is φ = 68797165840.

The previous prime is 68797165837. The next prime is 68797165897. The reversal of 68797165841 is 14856179786.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39648774400 + 29148391441 = 199120^2 + 170729^2 .

It is a cyclic number.

It is not a de Polignac number, because 68797165841 - 2² = 68797165837 is a prime.

It is not a weakly prime, because it can be changed into another prime (68797185841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34398582920 + 34398582921.

It is an arithmetic number, because the mean of its divisors is an integer number (34398582921).

Almost surely, 2^68797165841 is an apocalyptic number.

It is an amenable number.

68797165841 is a deficient number, since it is larger than the sum of its proper divisors (1).

68797165841 is an equidigital number, since it uses as much as digits as its factorization.

68797165841 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20321280, while the sum is 62.

The spelling of 68797165841 in words is "sixty-eight billion, seven hundred ninety-seven million, one hundred sixty-five thousand, eight hundred forty-one".