9984719014128 has 60 divisors (see below), whose sum is σ = 28034366368008. Its totient is φ = 3317398485120.

The previous prime is 9984719014093. The next prime is 9984719014129. The reversal of 9984719014128 is 8214109174899.

9984719014128 is a `hidden beast` number, since 9 + 98 + 47 + 1 + 90 + 1 + 412 + 8 = 666.

It is a super-2 number, since 2×9984719014128² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9984719014129) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 112884663 + ... + 112973078.

Almost surely, 2^{9984719014128} is an apocalyptic number.

It is an amenable number.

9984719014128 is an abundant number, since it is smaller than the sum of its proper divisors (18049647353880).

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

9984719014128 is a wasteful number, since it uses less digits than its factorization.

9984719014128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225858062 (or 225858053 counting only the distinct ones).

The product of its (nonzero) digits is 10450944, while the sum is 63.

The spelling of 9984719014128 in words is "nine trillion, nine hundred eighty-four billion, seven hundred nineteen million, fourteen thousand, one hundred twenty-eight".