198967394052 has 144 divisors (see below), whose sum is σ = 640638311040. Its totient is φ = 50687824896.

The previous prime is 198967393997. The next prime is 198967394053. The reversal of 198967394052 is 250493769891.

198967394052 is a `hidden beast` number, since 198 + 9 + 6 + 7 + 39 + 405 + 2 = 666.

198967394052 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

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

It is not an unprimeable number, because it can be changed into a prime (198967394053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1140823 + ... + 1303614.

It is an arithmetic number, because the mean of its divisors is an integer number (4448877160).

It is a 1-persistent number, because it is pandigital, but 2⋅198967394052 = 397934788104 is not.

Almost surely, 2^198967394052 is an apocalyptic number.

198967394052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

198967394052 is an abundant number, since it is smaller than the sum of its proper divisors (441670916988).

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

198967394052 is a wasteful number, since it uses less digits than its factorization.

198967394052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2444490 (or 2444485 counting only the distinct ones).

The product of its (nonzero) digits is 29393280, while the sum is 63.

The spelling of 198967394052 in words is "one hundred ninety-eight billion, nine hundred sixty-seven million, three hundred ninety-four thousand, fifty-two".