2069456209 has 2 divisors, whose sum is σ = 2069456210. Its totient is φ = 2069456208.

The previous prime is 2069456183. The next prime is 2069456239. The reversal of 2069456209 is 9026549602.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1996302400 + 73153809 = 44680^2 + 8553^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2069456209 is a prime.

It is not a weakly prime, because it can be changed into another prime (2069456239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1034728104 + 1034728105.

It is an arithmetic number, because the mean of its divisors is an integer number (1034728105).

Almost surely, 2^2069456209 is an apocalyptic number.

It is an amenable number.

2069456209 is a deficient number, since it is larger than the sum of its proper divisors (1).

2069456209 is an equidigital number, since it uses as much as digits as its factorization.

2069456209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 233280, while the sum is 43.

The square root of 2069456209 is about 45491.2761856600. The cubic root of 2069456209 is about 1274.3402885195.

The spelling of 2069456209 in words is "two billion, sixty-nine million, four hundred fifty-six thousand, two hundred nine".