9997946943600 has 240 divisors, whose sum is σ = 39929463279360. Its totient is φ = 2077495449600.

The previous prime is 9997946943577. The next prime is 9997946943617. The reversal of 9997946943600 is 63496497999.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (75).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 54009045 + ... + 54193844.

It is an arithmetic number, because the mean of its divisors is an integer number (166372763664).

Almost surely, 2^{9997946943600} is an apocalyptic number.

It is an amenable number.

9997946943600 is an abundant number, since it is smaller than the sum of its proper divisors (29931516335760).

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

9997946943600 is a wasteful number, since it uses less digits than its factorization.

9997946943600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108202928 (or 108202917 counting only the distinct ones).

The product of its (nonzero) digits is 714256704, while the sum is 75.

The spelling of 9997946943600 in words is "nine trillion, nine hundred ninety-seven billion, nine hundred forty-six million, nine hundred forty-three thousand, six hundred".