6812963209 has 16 divisors (see below), whose sum is σ = 7726178880. Its totient is φ = 5955595200.

The previous prime is 6812963191. The next prime is 6812963233. The reversal of 6812963209 is 9023692186.

It is a cyclic number.

It is not a de Polignac number, because 6812963209 - 2¹⁷ = 6812832137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6812963249) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1096299 + ... + 1102495.

It is an arithmetic number, because the mean of its divisors is an integer number (482886180).

Almost surely, 2^6812963209 is an apocalyptic number.

It is an amenable number.

6812963209 is a deficient number, since it is larger than the sum of its proper divisors (913215671).

6812963209 is a wasteful number, since it uses less digits than its factorization.

6812963209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10680.

The product of its (nonzero) digits is 279936, while the sum is 46.

The square root of 6812963209 is about 82540.6760876115. The cubic root of 6812963209 is about 1895.7395960659.

The spelling of 6812963209 in words is "six billion, eight hundred twelve million, nine hundred sixty-three thousand, two hundred nine".