858841422408 has 108 divisors (see below), whose sum is σ = 2344943654235. Its totient is φ = 283971189888.

The previous prime is 858841422401. The next prime is 858841422409. The reversal of 858841422408 is 804224148858.

It is a happy number.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

858841422408 is a `hidden beast` number, since 8 + 588 + 4 + 14 + 2 + 2 + 40 + 8 = 666.

858841422408 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 5 ways, for example, as 597804219684 + 261037202724 = 773178^2 + 510918^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=655302.

It is not an unprimeable number, because it can be changed into a prime (858841422401) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 1171679610 + ... + 1171680342.

Almost surely, 2^858841422408 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 858841422408

858841422408 is an abundant number, since it is smaller than the sum of its proper divisors (1486102231827).

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

858841422408 is an equidigital number, since it uses as much as digits as its factorization.

858841422408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1776 (or 887 counting only the distinct ones).

The product of its (nonzero) digits is 5242880, while the sum is 54.

The spelling of 858841422408 in words is "eight hundred fifty-eight billion, eight hundred forty-one million, four hundred twenty-two thousand, four hundred eight".