858823051073860 has 48 divisors (see below), whose sum is σ = 1804372095944880. Its totient is φ = 343368523284480.

The previous prime is 858823051073851. The next prime is 858823051073861. The reversal of 858823051073860 is 68370150328858.

It can be written as a sum of positive squares in 8 ways, for example, as 11553092232256 + 847269958841604 = 3398984^2 + 29107902^2 .

It is a junction number, because it is equal to n+sod(n) for n = 858823051073792 and 858823051073801.

It is not an unprimeable number, because it can be changed into a prime (858823051073861) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3220183396 + ... + 3220450084.

It is an arithmetic number, because the mean of its divisors is an integer number (37591085332185).

Almost surely, 2^{858823051073860} is an apocalyptic number.

It is an amenable number.

858823051073860 is an abundant number, since it is smaller than the sum of its proper divisors (945549044871020).

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

858823051073860 is a wasteful number, since it uses less digits than its factorization.

858823051073860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341416 (or 341414 counting only the distinct ones).

The product of its (nonzero) digits is 77414400, while the sum is 64.

The spelling of 858823051073860 in words is "eight hundred fifty-eight trillion, eight hundred twenty-three billion, fifty-one million, seventy-three thousand, eight hundred sixty".