6777019209 has 16 divisors (see below), whose sum is σ = 9133115264. Its totient is φ = 4469558400.

The previous prime is 6777019181. The next prime is 6777019217. The reversal of 6777019209 is 9029107776.

It is not a de Polignac number, because 6777019209 - 2¹¹ = 6777017161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6777019219) 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 15 ways as a sum of consecutive naturals, for example, 304749 + ... + 326229.

It is an arithmetic number, because the mean of its divisors is an integer number (570819704).

Almost surely, 2^6777019209 is an apocalyptic number.

It is an amenable number.

6777019209 is a deficient number, since it is larger than the sum of its proper divisors (2356096055).

6777019209 is a wasteful number, since it uses less digits than its factorization.

6777019209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22608.

The product of its (nonzero) digits is 333396, while the sum is 48.

The square root of 6777019209 is about 82322.6530731366. The cubic root of 6777019209 is about 1892.3998525602.

The spelling of 6777019209 in words is "six billion, seven hundred seventy-seven million, nineteen thousand, two hundred nine".