12189470898 has 16 divisors (see below), whose sum is σ = 26595209376. Its totient is φ = 3693779040.

The previous prime is 12189470861. The next prime is 12189470911. The reversal of 12189470898 is 89807498121.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92344411 + ... + 92344542.

It is an arithmetic number, because the mean of its divisors is an integer number (1662200586).

Almost surely, 2^12189470898 is an apocalyptic number.

12189470898 is an abundant number, since it is smaller than the sum of its proper divisors (14405738478).

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

12189470898 is a wasteful number, since it uses less digits than its factorization.

12189470898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184688969.

The product of its (nonzero) digits is 2322432, while the sum is 57.

The spelling of 12189470898 in words is "twelve billion, one hundred eighty-nine million, four hundred seventy thousand, eight hundred ninety-eight".