6746433809 has 2 divisors, whose sum is σ = 6746433810. Its totient is φ = 6746433808.

The previous prime is 6746433779. The next prime is 6746433817. The reversal of 6746433809 is 9083346476.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5037024784 + 1709409025 = 70972^2 + 41345^2 .

It is a cyclic number.

It is not a de Polignac number, because 6746433809 - 2⁸ = 6746433553 is a prime.

It is not a weakly prime, because it can be changed into another prime (6746433839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3373216904 + 3373216905.

It is an arithmetic number, because the mean of its divisors is an integer number (3373216905).

Almost surely, 2^6746433809 is an apocalyptic number.

It is an amenable number.

6746433809 is a deficient number, since it is larger than the sum of its proper divisors (1).

6746433809 is an equidigital number, since it uses as much as digits as its factorization.

6746433809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2612736, while the sum is 50.

The square root of 6746433809 is about 82136.6776111622. The cubic root of 6746433809 is about 1889.5486925744.

The spelling of 6746433809 in words is "six billion, seven hundred forty-six million, four hundred thirty-three thousand, eight hundred nine".