60685791689 has 2 divisors, whose sum is σ = 60685791690. Its totient is φ = 60685791688.

The previous prime is 60685791659. The next prime is 60685791737. The reversal of 60685791689 is 98619758606.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45162625225 + 15523166464 = 212515^2 + 124592^2 .

It is a cyclic number.

It is not a de Polignac number, because 60685791689 - 2³² = 56390824393 is a prime.

It is not a weakly prime, because it can be changed into another prime (60685791659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30342895844 + 30342895845.

It is an arithmetic number, because the mean of its divisors is an integer number (30342895845).

Almost surely, 2^60685791689 is an apocalyptic number.

It is an amenable number.

60685791689 is a deficient number, since it is larger than the sum of its proper divisors (1).

60685791689 is an equidigital number, since it uses as much as digits as its factorization.

60685791689 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 39191040, while the sum is 65.

The spelling of 60685791689 in words is "sixty billion, six hundred eighty-five million, seven hundred ninety-one thousand, six hundred eighty-nine".