198836025444 has 36 divisors (see below), whose sum is σ = 574415185344. Its totient is φ = 56810292912.

The previous prime is 198836025433. The next prime is 198836025457. The reversal of 198836025444 is 444520638891.

198836025444 is a `hidden beast` number, since 1 + 98 + 8 + 3 + 6 + 0 + 2 + 544 + 4 = 666.

198836025444 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 394515672 + ... + 394516175.

Almost surely, 2^198836025444 is an apocalyptic number.

198836025444 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

198836025444 is an abundant number, since it is smaller than the sum of its proper divisors (375579159900).

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

198836025444 is a wasteful number, since it uses less digits than its factorization.

198836025444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 789031864 (or 789031859 counting only the distinct ones).

The product of its (nonzero) digits is 6635520, while the sum is 54.

The spelling of 198836025444 in words is "one hundred ninety-eight billion, eight hundred thirty-six million, twenty-five thousand, four hundred forty-four".