198053786880 has 504 divisors, whose sum is σ = 748778274720. Its totient is φ = 50030161920.

The previous prime is 198053786789. The next prime is 198053786893. The reversal of 198053786880 is 88687350891.

198053786880 is a `hidden beast` number, since 1 + 98 + 0 + 537 + 8 + 6 + 8 + 8 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 17723695 + ... + 17734865.

It is an arithmetic number, because the mean of its divisors is an integer number (1485671180).

Almost surely, 2^198053786880 is an apocalyptic number.

198053786880 is a gapful number since it is divisible by the number (10) 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 198053786880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (374389137360).

198053786880 is an abundant number, since it is smaller than the sum of its proper divisors (550724487840).

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

198053786880 is an equidigital number, since it uses as much as digits as its factorization.

198053786880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11229 (or 11200 counting only the distinct ones).

The product of its (nonzero) digits is 23224320, while the sum is 63.

The spelling of 198053786880 in words is "one hundred ninety-eight billion, fifty-three million, seven hundred eighty-six thousand, eight hundred eighty".