68110740991 has 2 divisors, whose sum is σ = 68110740992. Its totient is φ = 68110740990.

The previous prime is 68110740911. The next prime is 68110741037. The reversal of 68110740991 is 19904701186.

It is an a-pointer prime, because the next prime (68110741037) can be obtained adding 68110740991 to its sum of digits (46).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68110740991 - 2²⁵ = 68077186559 is a prime.

It is a zygodrome in base 8.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68110740911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34055370495 + 34055370496.

It is an arithmetic number, because the mean of its divisors is an integer number (34055370496).

Almost surely, 2^68110740991 is an apocalyptic number.

68110740991 is a deficient number, since it is larger than the sum of its proper divisors (1).

68110740991 is an equidigital number, since it uses as much as digits as its factorization.

68110740991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108864, while the sum is 46.

The spelling of 68110740991 in words is "sixty-eight billion, one hundred ten million, seven hundred forty thousand, nine hundred ninety-one".