198137210558884 has 9 divisors (see below), whose sum is σ = 346740167744481. Its totient is φ = 99068591203320.

The previous prime is 198137210558867. The next prime is 198137210558887. The reversal of 198137210558884 is 488855012731891.

The square root of 198137210558884 is 14076122.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 73968978672484 + 124168231886400 = 8600522^2 + 11143080^2 .

It is a super-3 number, since 3×198137210558884³ (a number of 44 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (198137210558887) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 24633214 + ... + 31671274.

Almost surely, 2^{198137210558884} is an apocalyptic number.

198137210558884 is the 14076122-nd square number.

It is an amenable number.

198137210558884 is a deficient number, since it is larger than the sum of its proper divisors (148602957185597).

198137210558884 is an frugal number, since it uses more digits than its factorization.

198137210558884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14076126 (or 7038063 counting only the distinct ones).

The product of its (nonzero) digits is 154828800, while the sum is 70.

The spelling of 198137210558884 in words is "one hundred ninety-eight trillion, one hundred thirty-seven billion, two hundred ten million, five hundred fifty-eight thousand, eight hundred eighty-four".