198134977012 has 24 divisors (see below), whose sum is σ = 396662745920. Its totient is φ = 84830820480.

The previous prime is 198134977003. The next prime is 198134977031. The reversal of 198134977012 is 210779431891.

It is a happy number.

198134977012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×198134977012³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3478314 + ... + 3534817.

Almost surely, 2^198134977012 is an apocalyptic number.

It is an amenable number.

198134977012 is an abundant number, since it is smaller than the sum of its proper divisors (198527768908).

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

198134977012 is a wasteful number, since it uses less digits than its factorization.

198134977012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7014151 (or 7014149 counting only the distinct ones).

The product of its (nonzero) digits is 762048, while the sum is 52.

The spelling of 198134977012 in words is "one hundred ninety-eight billion, one hundred thirty-four million, nine hundred seventy-seven thousand, twelve".