198144336459 has 16 divisors (see below), whose sum is σ = 272779602944. Its totient is φ = 127804672800.

The previous prime is 198144336433. The next prime is 198144336461. The reversal of 198144336459 is 954633441891.

It is not a de Polignac number, because 198144336459 - 2¹⁵ = 198144303691 is a prime.

It is a super-3 number, since 3×198144336459³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 198144336399 and 198144336408.

It is not an unprimeable number, because it can be changed into a prime (198144336259) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 143529 + ... + 645669.

It is an arithmetic number, because the mean of its divisors is an integer number (17048725184).

Almost surely, 2^198144336459 is an apocalyptic number.

198144336459 is a deficient number, since it is larger than the sum of its proper divisors (74635266485).

198144336459 is a wasteful number, since it uses less digits than its factorization.

198144336459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506418.

The product of its digits is 11197440, while the sum is 57.

The spelling of 198144336459 in words is "one hundred ninety-eight billion, one hundred forty-four million, three hundred thirty-six thousand, four hundred fifty-nine".