285339075809 has 2 divisors, whose sum is σ = 285339075810. Its totient is φ = 285339075808.

The previous prime is 285339075803. The next prime is 285339075841. The reversal of 285339075809 is 908570933582.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 147204203584 + 138134872225 = 383672^2 + 371665^2 .

It is a cyclic number.

It is not a de Polignac number, because 285339075809 - 2³⁶ = 216619599073 is a prime.

It is not a weakly prime, because it can be changed into another prime (285339075803) 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, 142669537904 + 142669537905.

It is an arithmetic number, because the mean of its divisors is an integer number (142669537905).

Almost surely, 2^285339075809 is an apocalyptic number.

It is an amenable number.

285339075809 is a deficient number, since it is larger than the sum of its proper divisors (1).

285339075809 is an equidigital number, since it uses as much as digits as its factorization.

285339075809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16329600, while the sum is 59.

The spelling of 285339075809 in words is "two hundred eighty-five billion, three hundred thirty-nine million, seventy-five thousand, eight hundred nine".