858409094268 has 144 divisors (see below), whose sum is σ = 2506836530016. Its totient is φ = 244777082880.

The previous prime is 858409094237. The next prime is 858409094273. The reversal of 858409094268 is 862490904858.

858409094268 is a `hidden beast` number, since 8 + 584 + 0 + 9 + 0 + 9 + 42 + 6 + 8 = 666.

It is a super-2 number, since 2×858409094268² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

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 47 ways as a sum of consecutive naturals, for example, 55686130 + ... + 55701542.

It is an arithmetic number, because the mean of its divisors is an integer number (17408587014).

Almost surely, 2^858409094268 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 858409094268, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1253418265008).

858409094268 is an abundant number, since it is smaller than the sum of its proper divisors (1648427435748).

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

858409094268 is a wasteful number, since it uses less digits than its factorization.

858409094268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23724 (or 23719 counting only the distinct ones).

The product of its (nonzero) digits is 39813120, while the sum is 63.

The spelling of 858409094268 in words is "eight hundred fifty-eight billion, four hundred nine million, ninety-four thousand, two hundred sixty-eight".