6744264809 has 4 divisors (see below), whose sum is σ = 6763589700. Its totient is φ = 6724939920.

The previous prime is 6744264739. The next prime is 6744264851. The reversal of 6744264809 is 9084624476.

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 6064515625 + 679749184 = 77875^2 + 26072^2 .

It is a cyclic number.

It is not a de Polignac number, because 6744264809 - 2¹² = 6744260713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6744264869) by changing a digit.

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, 9661922 + ... + 9662619.

It is an arithmetic number, because the mean of its divisors is an integer number (1690897425).

Almost surely, 2^6744264809 is an apocalyptic number.

It is an amenable number.

6744264809 is a deficient number, since it is larger than the sum of its proper divisors (19324891).

6744264809 is a wasteful number, since it uses less digits than its factorization.

6744264809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19324890.

The product of its (nonzero) digits is 2322432, while the sum is 50.

The square root of 6744264809 is about 82123.4729477511. The cubic root of 6744264809 is about 1889.3461722243.

The spelling of 6744264809 in words is "six billion, seven hundred forty-four million, two hundred sixty-four thousand, eight hundred nine".