68045787071 has 2 divisors, whose sum is σ = 68045787072. Its totient is φ = 68045787070.

The previous prime is 68045786989. The next prime is 68045787169. The reversal of 68045787071 is 17078754086.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68045787071 - 2³⁰ = 66972045247 is a prime.

It is a super-2 number, since 2×68045787071² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68045787571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34022893535 + 34022893536.

It is an arithmetic number, because the mean of its divisors is an integer number (34022893536).

Almost surely, 2^68045787071 is an apocalyptic number.

68045787071 is a deficient number, since it is larger than the sum of its proper divisors (1).

68045787071 is an equidigital number, since it uses as much as digits as its factorization.

68045787071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2634240, while the sum is 53.

The spelling of 68045787071 in words is "sixty-eight billion, forty-five million, seven hundred eighty-seven thousand, seventy-one".