858768867858 has 64 divisors (see below), whose sum is σ = 1927932015744. Its totient is φ = 252794880000.

The previous prime is 858768867851. The next prime is 858768867883.

858768867858 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×858768867858² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (858768867851) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 862063 + ... + 1568658.

It is an arithmetic number, because the mean of its divisors is an integer number (30123937746).

Almost surely, 2^858768867858 is an apocalyptic number.

858768867858 is an abundant number, since it is smaller than the sum of its proper divisors (1069163147886).

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

858768867858 is a wasteful number, since it uses less digits than its factorization.

858768867858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2430891.

The product of its digits is 11560550400, while the sum is 84.

The spelling of 858768867858 in words is "eight hundred fifty-eight billion, seven hundred sixty-eight million, eight hundred sixty-seven thousand, eight hundred fifty-eight".