22865055858 has 54 divisors (see below), whose sum is σ = 51349952199. Its totient is φ = 7352880864.

The previous prime is 22865055823. The next prime is 22865055901. The reversal of 22865055858 is 85855056822.

22865055858 is a `hidden beast` number, since 2 + 2 + 8 + 6 + 50 + 5 + 585 + 8 = 666.

It can be written as a sum of positive squares in 5 ways, for example, as 22681263609 + 183792249 = 150603^2 + 13557^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=106923.

It is a super-4 number, since 4×22865055858⁴ (a number of 43 digits) contains 4444 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 18603988 + ... + 18605216.

Almost surely, 2^22865055858 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22865055858

22865055858 is an abundant number, since it is smaller than the sum of its proper divisors (28484896341).

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

22865055858 is an equidigital number, since it uses as much as digits as its factorization.

22865055858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2524 (or 1263 counting only the distinct ones).

The product of its (nonzero) digits is 7680000, while the sum is 54.

The spelling of 22865055858 in words is "twenty-two billion, eight hundred sixty-five million, fifty-five thousand, eight hundred fifty-eight".