85858585858583 has 2 divisors, whose sum is σ = 85858585858584. Its totient is φ = 85858585858582.

The previous prime is 85858585858531. The next prime is 85858585858597. The reversal of 85858585858583 is 38585858585858.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 85858585858583 - 2²⁰ = 85858584810007 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85858585828583) 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, 42929292929291 + 42929292929292.

It is an arithmetic number, because the mean of its divisors is an integer number (42929292929292).

Almost surely, 2^{85858585858583} is an apocalyptic number.

85858585858583 is a deficient number, since it is larger than the sum of its proper divisors (1).

85858585858583 is an equidigital number, since it uses as much as digits as its factorization.

85858585858583 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 98304000000, while the sum is 89.

It can be divided in two parts, 8585858 and 5858583, that added together give a palindrome (14444441).

The spelling of 85858585858583 in words is "eighty-five trillion, eight hundred fifty-eight billion, five hundred eighty-five million, eight hundred fifty-eight thousand, five hundred eighty-three".