198069449930109 has 80 divisors (see below), whose sum is σ = 300304521792000. Its totient is φ = 130087962105120.

The previous prime is 198069449929999. The next prime is 198069449930147. The reversal of 198069449930109 is 901039944960891.

198069449930109 is a `hidden beast` number, since 1 + 9 + 8 + 0 + 6 + 94 + 499 + 30 + 10 + 9 = 666.

It is not a de Polignac number, because 198069449930109 - 2¹² = 198069449926013 is a prime.

It is a super-2 number, since 2×198069449930109² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198069449930509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1223846824 + ... + 1224008654.

It is an arithmetic number, because the mean of its divisors is an integer number (3753806522400).

Almost surely, 2^{198069449930109} is an apocalyptic number.

It is an amenable number.

198069449930109 is a deficient number, since it is larger than the sum of its proper divisors (102235071861891).

198069449930109 is a wasteful number, since it uses less digits than its factorization.

198069449930109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162732 (or 162723 counting only the distinct ones).

The product of its (nonzero) digits is 136048896, while the sum is 72.

The spelling of 198069449930109 in words is "one hundred ninety-eight trillion, sixty-nine billion, four hundred forty-nine million, nine hundred thirty thousand, one hundred nine".