9928189836 has 36 divisors (see below), whose sum is σ = 25521623400. Its totient is φ = 3253304448.

The previous prime is 9928189829. The next prime is 9928189841. The reversal of 9928189836 is 6389818299.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-3 number, since 3×9928189836³ (a number of 31 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2335021 + ... + 2339268.

Almost surely, 2^9928189836 is an apocalyptic number.

It is an amenable number.

9928189836 is an abundant number, since it is smaller than the sum of its proper divisors (15593433564).

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

9928189836 is a wasteful number, since it uses less digits than its factorization.

9928189836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4674358 (or 4674353 counting only the distinct ones).

The product of its digits is 13436928, while the sum is 63.

The square root of 9928189836 is about 99640.3022677069. The cubic root of 9928189836 is about 2149.2652860759.

The spelling of 9928189836 in words is "nine billion, nine hundred twenty-eight million, one hundred eighty-nine thousand, eight hundred thirty-six".