198774126352 has 20 divisors (see below), whose sum is σ = 397548253696. Its totient is φ = 96181028640.

The previous prime is 198774126323. The next prime is 198774126359. The reversal of 198774126352 is 253621477891.

198774126352 is an admirable number.

It is a super-2 number, since 2×198774126352² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 198774126293 and 198774126302.

It is not an unprimeable number, because it can be changed into a prime (198774126359) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 200376648 + ... + 200377639.

Almost surely, 2^198774126352 is an apocalyptic number.

It is an amenable number.

198774126352 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

198774126352 is a wasteful number, since it uses less digits than its factorization.

198774126352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400754326 (or 400754320 counting only the distinct ones).

The product of its digits is 5080320, while the sum is 55.

The spelling of 198774126352 in words is "one hundred ninety-eight billion, seven hundred seventy-four million, one hundred twenty-six thousand, three hundred fifty-two".