198835731848 has 48 divisors (see below), whose sum is σ = 404545363200. Its totient is φ = 91578452160.

The previous prime is 198835731847. The next prime is 198835731869. The reversal of 198835731848 is 848137538891.

It is a super-2 number, since 2×198835731848² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (198835731847) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 494093 + ... + 801123.

It is an arithmetic number, because the mean of its divisors is an integer number (8428028400).

Almost surely, 2^198835731848 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 198835731848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (202272681600).

198835731848 is an abundant number, since it is smaller than the sum of its proper divisors (205709631352).

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

198835731848 is a wasteful number, since it uses less digits than its factorization.

198835731848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307542 (or 307525 counting only the distinct ones).

The product of its digits is 46448640, while the sum is 65.

The spelling of 198835731848 in words is "one hundred ninety-eight billion, eight hundred thirty-five million, seven hundred thirty-one thousand, eight hundred forty-eight".