2705516809 has 2 divisors, whose sum is σ = 2705516810. Its totient is φ = 2705516808.

The previous prime is 2705516797. The next prime is 2705516813. The reversal of 2705516809 is 9086155072.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2327097600 + 378419209 = 48240^2 + 19453^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2705516809 is a prime.

It is not a weakly prime, because it can be changed into another prime (2705516899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1352758404 + 1352758405.

It is an arithmetic number, because the mean of its divisors is an integer number (1352758405).

Almost surely, 2^2705516809 is an apocalyptic number.

It is an amenable number.

2705516809 is a deficient number, since it is larger than the sum of its proper divisors (1).

2705516809 is an equidigital number, since it uses as much as digits as its factorization.

2705516809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 151200, while the sum is 43.

The square root of 2705516809 is about 52014.5826571741. The cubic root of 2705516809 is about 1393.4244033571.

The spelling of 2705516809 in words is "two billion, seven hundred five million, five hundred sixteen thousand, eight hundred nine".