68110540819 has 2 divisors, whose sum is σ = 68110540820. Its totient is φ = 68110540818.

The previous prime is 68110540793. The next prime is 68110540829. The reversal of 68110540819 is 91804501186.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68110540819 - 2⁷ = 68110540691 is a prime.

It is a super-2 number, since 2×68110540819² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (68110540829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34055270409 + 34055270410.

It is an arithmetic number, because the mean of its divisors is an integer number (34055270410).

Almost surely, 2^68110540819 is an apocalyptic number.

68110540819 is a deficient number, since it is larger than the sum of its proper divisors (1).

68110540819 is an equidigital number, since it uses as much as digits as its factorization.

68110540819 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69120, while the sum is 43.

The spelling of 68110540819 in words is "sixty-eight billion, one hundred ten million, five hundred forty thousand, eight hundred nineteen".