2394543209 has 2 divisors, whose sum is σ = 2394543210. Its totient is φ = 2394543208.

The previous prime is 2394543181. The next prime is 2394543269. The reversal of 2394543209 is 9023454932.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1255143184 + 1139400025 = 35428^2 + 33755^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2394543209 is a prime.

It is not a weakly prime, because it can be changed into another prime (2394543269) 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, 1197271604 + 1197271605.

It is an arithmetic number, because the mean of its divisors is an integer number (1197271605).

Almost surely, 2^2394543209 is an apocalyptic number.

It is an amenable number.

2394543209 is a deficient number, since it is larger than the sum of its proper divisors (1).

2394543209 is an equidigital number, since it uses as much as digits as its factorization.

2394543209 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 41.

The square root of 2394543209 is about 48934.0700228379. The cubic root of 2394543209 is about 1337.8504202395.

The spelling of 2394543209 in words is "two billion, three hundred ninety-four million, five hundred forty-three thousand, two hundred nine".