4243676309 has 2 divisors, whose sum is σ = 4243676310. Its totient is φ = 4243676308.

The previous prime is 4243676293. The next prime is 4243676363. The reversal of 4243676309 is 9036763424.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4015756900 + 227919409 = 63370^2 + 15097^2 .

It is a cyclic number.

It is not a de Polignac number, because 4243676309 - 2⁴ = 4243676293 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4243676309.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4243679309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2121838154 + 2121838155.

It is an arithmetic number, because the mean of its divisors is an integer number (2121838155).

Almost surely, 2^4243676309 is an apocalyptic number.

It is an amenable number.

4243676309 is a deficient number, since it is larger than the sum of its proper divisors (1).

4243676309 is an equidigital number, since it uses as much as digits as its factorization.

4243676309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 653184, while the sum is 44.

The square root of 4243676309 is about 65143.5055013161. The cubic root of 4243676309 is about 1619.0021173796.

The spelling of 4243676309 in words is "four billion, two hundred forty-three million, six hundred seventy-six thousand, three hundred nine".