6736842689 has 2 divisors, whose sum is σ = 6736842690. Its totient is φ = 6736842688.

The previous prime is 6736842677. The next prime is 6736842727. The reversal of 6736842689 is 9862486376.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5809031089 + 927811600 = 76217^2 + 30460^2 .

It is a cyclic number.

It is not a de Polignac number, because 6736842689 - 2²⁰ = 6735794113 is a prime.

It is not a weakly prime, because it can be changed into another prime (6736842659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3368421344 + 3368421345.

It is an arithmetic number, because the mean of its divisors is an integer number (3368421345).

Almost surely, 2^6736842689 is an apocalyptic number.

It is an amenable number.

6736842689 is a deficient number, since it is larger than the sum of its proper divisors (1).

6736842689 is an equidigital number, since it uses as much as digits as its factorization.

6736842689 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20901888, while the sum is 59.

The square root of 6736842689 is about 82078.2717227891. The cubic root of 6736842689 is about 1888.6528373843.

The spelling of 6736842689 in words is "six billion, seven hundred thirty-six million, eight hundred forty-two thousand, six hundred eighty-nine".