6773783809 has 15 divisors (see below), whose sum is σ = 7353345237. Its totient is φ = 6239884248.

The previous prime is 6773783791. The next prime is 6773783833. The reversal of 6773783809 is 9083873776.

The square root of 6773783809 is 82303.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 2 ways, for example, as 3358550209 + 3415233600 = 57953^2 + 58440^2 .

It is not a de Polignac number, because 6773783809 - 2¹⁵ = 6773751041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6773783839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 13908964 + ... + 13909450.

Almost surely, 2^6773783809 is an apocalyptic number.

6773783809 is the 82303-rd square number.

6773783809 is the 41152-nd centered octagonal number.

It is an amenable number.

6773783809 is a deficient number, since it is larger than the sum of its proper divisors (579561428).

6773783809 is an frugal number, since it uses more digits than its factorization.

6773783809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1026 (or 500 counting only the distinct ones).

The product of its (nonzero) digits is 10668672, while the sum is 58.

The cubic root of 6773783809 is about 1892.0986559776.

The spelling of 6773783809 in words is "six billion, seven hundred seventy-three million, seven hundred eighty-three thousand, eight hundred nine".