85858533810 has 96 divisors (see below), whose sum is σ = 255634704000. Its totient is φ = 19585407744.

The previous prime is 85858533797. The next prime is 85858533811. The reversal of 85858533810 is 1833585858.

85858533810 is a `hidden beast` number, since 8 + 58 + 58 + 533 + 8 + 1 + 0 = 666.

It is a super-2 number, since 2×85858533810² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (85858533811) 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 in 47 ways as a sum of consecutive naturals, for example, 177814 + ... + 450926.

It is an arithmetic number, because the mean of its divisors is an integer number (2662861500).

Almost surely, 2^85858533810 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 85858533810, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127817352000).

85858533810 is an abundant number, since it is smaller than the sum of its proper divisors (169776170190).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85858533810 is a wasteful number, since it uses less digits than its factorization.

85858533810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273632 (or 273629 counting only the distinct ones).

The product of its (nonzero) digits is 4608000, while the sum is 54.

The spelling of 85858533810 in words is "eighty-five billion, eight hundred fifty-eight million, five hundred thirty-three thousand, eight hundred ten".