85858578573 has 4 divisors (see below), whose sum is σ = 114478104768. Its totient is φ = 57239052380.

The previous prime is 85858578563. The next prime is 85858578581. The reversal of 85858578573 is 37587585858.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 85858578573 - 2¹⁰ = 85858577549 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 85858578498 and 85858578507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85858578563) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14309763093 + ... + 14309763098.

It is an arithmetic number, because the mean of its divisors is an integer number (28619526192).

Almost surely, 2^85858578573 is an apocalyptic number.

It is an amenable number.

85858578573 is a deficient number, since it is larger than the sum of its proper divisors (28619526195).

85858578573 is a wasteful number, since it uses less digits than its factorization.

85858578573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28619526194.

The product of its digits is 376320000, while the sum is 69.

It can be divided in two parts, 858585785 and 73, that added together give a palindrome (858585858).

The spelling of 85858578573 in words is "eighty-five billion, eight hundred fifty-eight million, five hundred seventy-eight thousand, five hundred seventy-three".