9898668843192 has 96 divisors (see below), whose sum is σ = 27326763968400. Its totient is φ = 3235873425408.

The previous prime is 9898668843137. The next prime is 9898668843197. The reversal of 9898668843192 is 2913488668989.

9898668843192 is a `hidden beast` number, since 9 + 8 + 98 + 6 + 6 + 8 + 8 + 431 + 92 = 666.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9898668843197) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8103159 + ... + 9244377.

Almost surely, 2^{9898668843192} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9898668843192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13663381984200).

9898668843192 is an abundant number, since it is smaller than the sum of its proper divisors (17428095125208).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9898668843192 is a wasteful number, since it uses less digits than its factorization.

9898668843192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1143557 (or 1143550 counting only the distinct ones).

The product of its digits is 2579890176, while the sum is 81.

The spelling of 9898668843192 in words is "nine trillion, eight hundred ninety-eight billion, six hundred sixty-eight million, eight hundred forty-three thousand, one hundred ninety-two".