9936189198387 has 6 divisors (see below), whose sum is σ = 14352273286572. Its totient is φ = 6624126132252.

The previous prime is 9936189198379. The next prime is 9936189198491. The reversal of 9936189198387 is 7838919816399.

9936189198387 is a `hidden beast` number, since 9 + 9 + 3 + 61 + 8 + 91 + 98 + 387 = 666.

It is not a de Polignac number, because 9936189198387 - 2³ = 9936189198379 is a prime.

It is a super-2 number, since 2×9936189198387² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (9936189191387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 552010511013 + ... + 552010511030.

It is an arithmetic number, because the mean of its divisors is an integer number (2392045547762).

Almost surely, 2^{9936189198387} is an apocalyptic number.

9936189198387 is a deficient number, since it is larger than the sum of its proper divisors (4416084088185).

9936189198387 is a wasteful number, since it uses less digits than its factorization.

9936189198387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1104021022049 (or 1104021022046 counting only the distinct ones).

The product of its digits is 1269789696, while the sum is 81.

The spelling of 9936189198387 in words is "nine trillion, nine hundred thirty-six billion, one hundred eighty-nine million, one hundred ninety-eight thousand, three hundred eighty-seven".