189908000010 has 80 divisors (see below), whose sum is σ = 515160710856. Its totient is φ = 50193948672.

The previous prime is 189907999979. The next prime is 189908000011. The reversal of 189908000010 is 10000809981.

189908000010 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 155230484049 + 34677515961 = 393993^2 + 186219^2 .

It is not an unprimeable number, because it can be changed into a prime (189908000011) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 945879 + ... + 1128938.

Almost surely, 2^189908000010 is an apocalyptic number.

189908000010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

189908000010 is an abundant number, since it is smaller than the sum of its proper divisors (325252710846).

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

189908000010 is a wasteful number, since it uses less digits than its factorization.

189908000010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2074949 (or 2074940 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 36.

Adding to 189908000010 its reverse (10000809981), we get a palindrome (199908809991).

The spelling of 189908000010 in words is "one hundred eighty-nine billion, nine hundred eight million, ten", and thus it is an aban number.