22556851839 has 8 divisors (see below), whose sum is σ = 33417558320. Its totient is φ = 15037901208.

The previous prime is 22556851831. The next prime is 22556851841. The reversal of 22556851839 is 93815865522.

It is a happy number.

22556851839 is a `hidden beast` number, since 2 + 2 + 556 + 8 + 5 + 1 + 83 + 9 = 666.

It is not a de Polignac number, because 22556851839 - 2³ = 22556851831 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22556851831) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 417719452 + ... + 417719505.

It is an arithmetic number, because the mean of its divisors is an integer number (4177194790).

Almost surely, 2^22556851839 is an apocalyptic number.

22556851839 is a deficient number, since it is larger than the sum of its proper divisors (10860706481).

22556851839 is an equidigital number, since it uses as much as digits as its factorization.

22556851839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 835438966 (or 835438960 counting only the distinct ones).

The product of its digits is 5184000, while the sum is 54.

The spelling of 22556851839 in words is "twenty-two billion, five hundred fifty-six million, eight hundred fifty-one thousand, eight hundred thirty-nine".