2808890332609 has 2 divisors, whose sum is σ = 2808890332610. Its totient is φ = 2808890332608.

The previous prime is 2808890332607. The next prime is 2808890332627. The reversal of 2808890332609 is 9062330988082.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2562176462400 + 246713870209 = 1600680^2 + 496703^2 .

It is a cyclic number.

It is not a de Polignac number, because 2808890332609 - 2¹ = 2808890332607 is a prime.

Together with 2808890332607, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2808890332607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1404445166304 + 1404445166305.

It is an arithmetic number, because the mean of its divisors is an integer number (1404445166305).

Almost surely, 2^{2808890332609} is an apocalyptic number.

It is an amenable number.

2808890332609 is a deficient number, since it is larger than the sum of its proper divisors (1).

2808890332609 is an equidigital number, since it uses as much as digits as its factorization.

2808890332609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8957952, while the sum is 58.

The spelling of 2808890332609 in words is "two trillion, eight hundred eight billion, eight hundred ninety million, three hundred thirty-two thousand, six hundred nine".