858289856928 has 48 divisors (see below), whose sum is σ = 2574869572800. Its totient is φ = 245225673216.

The previous prime is 858289856849. The next prime is 858289856971. The reversal of 858289856928 is 829658982858.

858289856928 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×858289856928² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 638607853 + ... + 638609196.

It is an arithmetic number, because the mean of its divisors is an integer number (53643116100).

Almost surely, 2^858289856928 is an apocalyptic number.

It is an amenable number.

858289856928 is an abundant number, since it is smaller than the sum of its proper divisors (1716579715872).

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

858289856928 is a wasteful number, since it uses less digits than its factorization.

858289856928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1277217069 (or 1277217061 counting only the distinct ones).

The product of its digits is 1592524800, while the sum is 78.

The spelling of 858289856928 in words is "eight hundred fifty-eight billion, two hundred eighty-nine million, eight hundred fifty-six thousand, nine hundred twenty-eight".