9946540758128 has 80 divisors (see below), whose sum is σ = 21425265528576. Its totient is φ = 4442219919360.

The previous prime is 9946540758109. The next prime is 9946540758241. The reversal of 9946540758128 is 8218570456499.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77550500 + ... + 77678652.

Almost surely, 2^{9946540758128} 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 9946540758128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10712632764288).

9946540758128 is an abundant number, since it is smaller than the sum of its proper divisors (11478724770448).

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

9946540758128 is a wasteful number, since it uses less digits than its factorization.

9946540758128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140242 (or 140236 counting only the distinct ones).

The product of its (nonzero) digits is 174182400, while the sum is 68.

The spelling of 9946540758128 in words is "nine trillion, nine hundred forty-six billion, five hundred forty million, seven hundred fifty-eight thousand, one hundred twenty-eight".