68056247197 has 2 divisors, whose sum is σ = 68056247198. Its totient is φ = 68056247196.

The previous prime is 68056247191. The next prime is 68056247239. The reversal of 68056247197 is 79174265086.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 62327119716 + 5729127481 = 249654^2 + 75691^2 .

It is a cyclic number.

It is not a de Polignac number, because 68056247197 - 2¹⁹ = 68055722909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68056247191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34028123598 + 34028123599.

It is an arithmetic number, because the mean of its divisors is an integer number (34028123599).

Almost surely, 2^68056247197 is an apocalyptic number.

It is an amenable number.

68056247197 is a deficient number, since it is larger than the sum of its proper divisors (1).

68056247197 is an equidigital number, since it uses as much as digits as its factorization.

68056247197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5080320, while the sum is 55.

The spelling of 68056247197 in words is "sixty-eight billion, fifty-six million, two hundred forty-seven thousand, one hundred ninety-seven".