9946343792640 has 896 divisors, whose sum is σ = 35511843225600. Its totient is φ = 2366279516160.

The previous prime is 9946343792639. The next prime is 9946343792677. The reversal of 9946343792640 is 462973436499.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2775980289 + ... + 2775983871.

It is an arithmetic number, because the mean of its divisors is an integer number (39633753600).

Almost surely, 2^{9946343792640} 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 9946343792640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17755921612800).

9946343792640 is an abundant number, since it is smaller than the sum of its proper divisors (25565499432960).

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

9946343792640 is a wasteful number, since it uses less digits than its factorization.

9946343792640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3706 (or 3682 counting only the distinct ones).

The product of its (nonzero) digits is 211631616, while the sum is 66.

The spelling of 9946343792640 in words is "nine trillion, nine hundred forty-six billion, three hundred forty-three million, seven hundred ninety-two thousand, six hundred forty".