854868868458 has 128 divisors (see below), whose sum is σ = 1912678023168. Its totient is φ = 252551040000.

The previous prime is 854868868453. The next prime is 854868868501.

854868868458 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×854868868458² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (854868868453) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 154836738 + ... + 154842258.

It is an arithmetic number, because the mean of its divisors is an integer number (14942797056).

Almost surely, 2^854868868458 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 854868868458, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (956339011584).

854868868458 is an abundant number, since it is smaller than the sum of its proper divisors (1057809154710).

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

854868868458 is a wasteful number, since it uses less digits than its factorization.

854868868458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5972.

The product of its digits is 3774873600, while the sum is 78.

The spelling of 854868868458 in words is "eight hundred fifty-four billion, eight hundred sixty-eight million, eight hundred sixty-eight thousand, four hundred fifty-eight".