198685084752 has 360 divisors, whose sum is σ = 718955546400. Its totient is φ = 50631759360.

The previous prime is 198685084733. The next prime is 198685084837. The reversal of 198685084752 is 257480586891.

198685084752 is a `hidden beast` number, since 1 + 9 + 86 + 8 + 508 + 47 + 5 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a self number, because there is not a number n which added to its sum of digits gives 198685084752.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 4089499 + ... + 4137797.

It is an arithmetic number, because the mean of its divisors is an integer number (1997098740).

Almost surely, 2^198685084752 is an apocalyptic number.

198685084752 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 198685084752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (359477773200).

198685084752 is an abundant number, since it is smaller than the sum of its proper divisors (520270461648).

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

198685084752 is a wasteful number, since it uses less digits than its factorization.

198685084752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48391 (or 48375 counting only the distinct ones).

The product of its (nonzero) digits is 38707200, while the sum is 63.

The spelling of 198685084752 in words is "one hundred ninety-eight billion, six hundred eighty-five million, eighty-four thousand, seven hundred fifty-two".