198142487384 has 8 divisors (see below), whose sum is σ = 371517163860. Its totient is φ = 99071243688.

The previous prime is 198142487321. The next prime is 198142487423. The reversal of 198142487384 is 483784241891.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-3 number, since 3×198142487384³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12383905454 + ... + 12383905469.

Almost surely, 2^198142487384 is an apocalyptic number.

It is an amenable number.

198142487384 is a deficient number, since it is larger than the sum of its proper divisors (173374676476).

198142487384 is a wasteful number, since it uses less digits than its factorization.

198142487384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24767810929 (or 24767810925 counting only the distinct ones).

The product of its digits is 12386304, while the sum is 59.

The spelling of 198142487384 in words is "one hundred ninety-eight billion, one hundred forty-two million, four hundred eighty-seven thousand, three hundred eighty-four".