198419127132 has 48 divisors (see below), whose sum is σ = 473393249280. Its totient is φ = 64655172672.

The previous prime is 198419127131. The next prime is 198419127139. The reversal of 198419127132 is 231721914891.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198419127131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 263538 + ... + 682854.

It is an arithmetic number, because the mean of its divisors is an integer number (9862359360).

Almost surely, 2^198419127132 is an apocalyptic number.

198419127132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

198419127132 is an abundant number, since it is smaller than the sum of its proper divisors (274974122148).

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

198419127132 is a wasteful number, since it uses less digits than its factorization.

198419127132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420210 (or 420208 counting only the distinct ones).

The product of its digits is 217728, while the sum is 48.

The spelling of 198419127132 in words is "one hundred ninety-eight billion, four hundred nineteen million, one hundred twenty-seven thousand, one hundred thirty-two".