83359289809 has 2 divisors, whose sum is σ = 83359289810. Its totient is φ = 83359289808.

The previous prime is 83359289789. The next prime is 83359289833. The reversal of 83359289809 is 90898295338.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 75884822784 + 7474467025 = 275472^2 + 86455^2 .

It is a cyclic number.

It is not a de Polignac number, because 83359289809 - 2⁵ = 83359289777 is a prime.

It is not a weakly prime, because it can be changed into another prime (83359289869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41679644904 + 41679644905.

It is an arithmetic number, because the mean of its divisors is an integer number (41679644905).

Almost surely, 2^83359289809 is an apocalyptic number.

It is an amenable number.

83359289809 is a deficient number, since it is larger than the sum of its proper divisors (1).

83359289809 is an equidigital number, since it uses as much as digits as its factorization.

83359289809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 33592320, while the sum is 64.

The spelling of 83359289809 in words is "eighty-three billion, three hundred fifty-nine million, two hundred eighty-nine thousand, eight hundred nine".