858103085826 has 36 divisors (see below), whose sum is σ = 2162770024662. Its totient is φ = 245172309984.

The previous prime is 858103085809. The next prime is 858103085867. The reversal of 858103085826 is 628580301858.

It is a happy number.

858103085826 is a `hidden beast` number, since 8 + 58 + 1 + 0 + 3 + 0 + 8 + 582 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 567257517225 + 290845568601 = 753165^2 + 539301^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 486452115 + ... + 486453878.

Almost surely, 2^858103085826 is an apocalyptic number.

858103085826 is an abundant number, since it is smaller than the sum of its proper divisors (1304666938836).

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

858103085826 is a wasteful number, since it uses less digits than its factorization.

858103085826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 972906015 (or 972906005 counting only the distinct ones).

The product of its (nonzero) digits is 3686400, while the sum is 54.

The spelling of 858103085826 in words is "eight hundred fifty-eight billion, one hundred three million, eighty-five thousand, eight hundred twenty-six".