2268774509 has 2 divisors, whose sum is σ = 2268774510. Its totient is φ = 2268774508.

The previous prime is 2268774503. The next prime is 2268774577. The reversal of 2268774509 is 9054778622.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2268616900 + 157609 = 47630^2 + 397^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2268774509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2268774503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1134387254 + 1134387255.

It is an arithmetic number, because the mean of its divisors is an integer number (1134387255).

Almost surely, 2^2268774509 is an apocalyptic number.

It is an amenable number.

2268774509 is a deficient number, since it is larger than the sum of its proper divisors (1).

2268774509 is an equidigital number, since it uses as much as digits as its factorization.

2268774509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1693440, while the sum is 50.

The square root of 2268774509 is about 47631.6544852265. The cubic root of 2268774509 is about 1314.0052830135.

The spelling of 2268774509 in words is "two billion, two hundred sixty-eight million, seven hundred seventy-four thousand, five hundred nine".