16747743689 has 2 divisors, whose sum is σ = 16747743690. Its totient is φ = 16747743688.

The previous prime is 16747743671. The next prime is 16747743709. The reversal of 16747743689 is 98634774761.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12329881600 + 4417862089 = 111040^2 + 66467^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16747743689 is a prime.

It is not a weakly prime, because it can be changed into another prime (16747733689) 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, 8373871844 + 8373871845.

It is an arithmetic number, because the mean of its divisors is an integer number (8373871845).

Almost surely, 2^16747743689 is an apocalyptic number.

It is an amenable number.

16747743689 is a deficient number, since it is larger than the sum of its proper divisors (1).

16747743689 is an equidigital number, since it uses as much as digits as its factorization.

16747743689 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 42674688, while the sum is 62.

The spelling of 16747743689 in words is "sixteen billion, seven hundred forty-seven million, seven hundred forty-three thousand, six hundred eighty-nine".