2680808563 has 2 divisors, whose sum is σ = 2680808564. Its totient is φ = 2680808562.

The previous prime is 2680808561. The next prime is 2680808573. The reversal of 2680808563 is 3658080862.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2680808563 - 2¹ = 2680808561 is a prime.

Together with 2680808561, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2680808561) 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 as a sum of consecutive naturals, namely, 1340404281 + 1340404282.

It is an arithmetic number, because the mean of its divisors is an integer number (1340404282).

Almost surely, 2^2680808563 is an apocalyptic number.

2680808563 is a deficient number, since it is larger than the sum of its proper divisors (1).

2680808563 is an equidigital number, since it uses as much as digits as its factorization.

2680808563 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 552960, while the sum is 46.

The square root of 2680808563 is about 51776.5252117212. The cubic root of 2680808563 is about 1389.1695888779.

The spelling of 2680808563 in words is "two billion, six hundred eighty million, eight hundred eight thousand, five hundred sixty-three".