6116678809 has 2 divisors, whose sum is σ = 6116678810. Its totient is φ = 6116678808.

The previous prime is 6116678801. The next prime is 6116678839. The reversal of 6116678809 is 9088766116.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5184720025 + 931958784 = 72005^2 + 30528^2 .

It is a cyclic number.

It is not a de Polignac number, because 6116678809 - 2³ = 6116678801 is a prime.

It is not a weakly prime, because it can be changed into another prime (6116678801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3058339404 + 3058339405.

It is an arithmetic number, because the mean of its divisors is an integer number (3058339405).

Almost surely, 2^6116678809 is an apocalyptic number.

It is an amenable number.

6116678809 is a deficient number, since it is larger than the sum of its proper divisors (1).

6116678809 is an equidigital number, since it uses as much as digits as its factorization.

6116678809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 870912, while the sum is 52.

The square root of 6116678809 is about 78209.1990049764. The cubic root of 6116678809 is about 1828.8239140194.

The spelling of 6116678809 in words is "six billion, one hundred sixteen million, six hundred seventy-eight thousand, eight hundred nine".