6746734385 has 4 divisors (see below), whose sum is σ = 8096081268. Its totient is φ = 5397387504.

The previous prime is 6746734373. The next prime is 6746734391. The reversal of 6746734385 is 5834376476.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4743903376 + 2002831009 = 68876^2 + 44753^2 .

It is a cyclic number.

It is not a de Polignac number, because 6746734385 - 2⁸ = 6746734129 is a prime.

It is a super-3 number, since 3×6746734385³ (a number of 30 digits) contains 333 as substring.

It is a Duffinian number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 674673434 + ... + 674673443.

It is an arithmetic number, because the mean of its divisors is an integer number (2024020317).

Almost surely, 2^6746734385 is an apocalyptic number.

It is an amenable number.

6746734385 is a deficient number, since it is larger than the sum of its proper divisors (1349346883).

6746734385 is a wasteful number, since it uses less digits than its factorization.

6746734385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1349346882.

The product of its digits is 10160640, while the sum is 53.

The square root of 6746734385 is about 82138.5073214750. The cubic root of 6746734385 is about 1889.5767540446.

The spelling of 6746734385 in words is "six billion, seven hundred forty-six million, seven hundred thirty-four thousand, three hundred eighty-five".