188906885196 has 24 divisors (see below), whose sum is σ = 455982137520. Its totient is φ = 60797618112.

The previous prime is 188906885191. The next prime is 188906885197. The reversal of 188906885196 is 691588609881.

It is a super-2 number, since 2×188906885196² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 188906885196.

It is not an unprimeable number, because it can be changed into a prime (188906885191) 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, 271417591 + ... + 271418286.

It is an arithmetic number, because the mean of its divisors is an integer number (18999255730).

Almost surely, 2^188906885196 is an apocalyptic number.

It is an amenable number.

188906885196 is an abundant number, since it is smaller than the sum of its proper divisors (267075252324).

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

188906885196 is a wasteful number, since it uses less digits than its factorization.

188906885196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 542835913 (or 542835911 counting only the distinct ones).

The product of its (nonzero) digits is 59719680, while the sum is 69.

The spelling of 188906885196 in words is "one hundred eighty-eight billion, nine hundred six million, eight hundred eighty-five thousand, one hundred ninety-six".