2808770852609 has 2 divisors, whose sum is σ = 2808770852610. Its totient is φ = 2808770852608.

The previous prime is 2808770852561. The next prime is 2808770852611. The reversal of 2808770852609 is 9062580778082.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1552398878209 + 1256371974400 = 1245953^2 + 1120880^2 .

It is a cyclic number.

It is not a de Polignac number, because 2808770852609 - 2²⁰ = 2808769804033 is a prime.

Together with 2808770852611, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2808770152609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1404385426304 + 1404385426305.

It is an arithmetic number, because the mean of its divisors is an integer number (1404385426305).

Almost surely, 2^{2808770852609} is an apocalyptic number.

It is an amenable number.

2808770852609 is a deficient number, since it is larger than the sum of its proper divisors (1).

2808770852609 is an equidigital number, since it uses as much as digits as its factorization.

2808770852609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27095040, while the sum is 62.

The spelling of 2808770852609 in words is "two trillion, eight hundred eight billion, seven hundred seventy million, eight hundred fifty-two thousand, six hundred nine".