1426286809 has 2 divisors, whose sum is σ = 1426286810. Its totient is φ = 1426286808.

The previous prime is 1426286773. The next prime is 1426286831. The reversal of 1426286809 is 9086826241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1187491600 + 238795209 = 34460^2 + 15453^2 .

It is an emirp because it is prime and its reverse (9086826241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1426286809 - 2⁷ = 1426286681 is a prime.

It is not a weakly prime, because it can be changed into another prime (1426286839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 713143404 + 713143405.

It is an arithmetic number, because the mean of its divisors is an integer number (713143405).

Almost surely, 2^1426286809 is an apocalyptic number.

It is an amenable number.

1426286809 is a deficient number, since it is larger than the sum of its proper divisors (1).

1426286809 is an equidigital number, since it uses as much as digits as its factorization.

1426286809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 331776, while the sum is 46.

The square root of 1426286809 is about 37766.2125318386. The cubic root of 1426286809 is about 1125.6471822558.

The spelling of 1426286809 in words is "one billion, four hundred twenty-six million, two hundred eighty-six thousand, eight hundred nine".