858318813858 has 16 divisors (see below), whose sum is σ = 1872695594016. Its totient is φ = 260096610240.

The previous prime is 858318813851. The next prime is 858318813887.

858318813858 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×858318813858² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (66), and also a Moran number because the ratio is a prime number: 13004830513 = 858318813858 / (8 + 5 + 8 + 3 + 1 + 8 + 8 + 1 + 3 + 8 + 5 + 8).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (858318813851) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 6502415191 + ... + 6502415322.

It is an arithmetic number, because the mean of its divisors is an integer number (117043474626).

Almost surely, 2^858318813858 is an apocalyptic number.

858318813858 is an abundant number, since it is smaller than the sum of its proper divisors (1014376780158).

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

858318813858 is a wasteful number, since it uses less digits than its factorization.

858318813858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13004830529.

The product of its digits is 58982400, while the sum is 66.

The spelling of 858318813858 in words is "eight hundred fifty-eight billion, three hundred eighteen million, eight hundred thirteen thousand, eight hundred fifty-eight".