2689343659 has 2 divisors, whose sum is σ = 2689343660. Its totient is φ = 2689343658.

The previous prime is 2689343641. The next prime is 2689343663. The reversal of 2689343659 is 9563439862.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2689343659 - 2¹⁵ = 2689310891 is a prime.

It is not a weakly prime, because it can be changed into another prime (2689343689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1344671829 + 1344671830.

It is an arithmetic number, because the mean of its divisors is an integer number (1344671830).

Almost surely, 2^2689343659 is an apocalyptic number.

2689343659 is a deficient number, since it is larger than the sum of its proper divisors (1).

2689343659 is an equidigital number, since it uses as much as digits as its factorization.

2689343659 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8398080, while the sum is 55.

The square root of 2689343659 is about 51858.8821611110. The cubic root of 2689343659 is about 1390.6422956761.

The spelling of 2689343659 in words is "two billion, six hundred eighty-nine million, three hundred forty-three thousand, six hundred fifty-nine".