198727563012 has 96 divisors (see below), whose sum is σ = 519004813824. Its totient is φ = 58659283200.

The previous prime is 198727562981. The next prime is 198727563017. The reversal of 198727563012 is 210365727891.

It is not an unprimeable number, because it can be changed into a prime (198727563017) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3451363 + ... + 3508469.

It is an arithmetic number, because the mean of its divisors is an integer number (5406300144).

Almost surely, 2^198727563012 is an apocalyptic number.

198727563012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 198727563012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (259502406912).

198727563012 is an abundant number, since it is smaller than the sum of its proper divisors (320277250812).

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

198727563012 is a wasteful number, since it uses less digits than its factorization.

198727563012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57809 (or 57807 counting only the distinct ones).

The product of its (nonzero) digits is 1270080, while the sum is 51.

The spelling of 198727563012 in words is "one hundred ninety-eight billion, seven hundred twenty-seven million, five hundred sixty-three thousand, twelve".