9798143850840 has 64 divisors (see below), whose sum is σ = 29892642278400. Its totient is φ = 2568552962432.

The previous prime is 9798143850829. The next prime is 9798143850853. The reversal of 9798143850840 is 480583418979.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 691952232 + ... + 691966391.

It is an arithmetic number, because the mean of its divisors is an integer number (467072535600).

Almost surely, 2^{9798143850840} is an apocalyptic number.

It is an amenable number.

9798143850840 is an abundant number, since it is smaller than the sum of its proper divisors (20094498427560).

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

9798143850840 is a wasteful number, since it uses less digits than its factorization.

9798143850840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1383918696 (or 1383918692 counting only the distinct ones).

The product of its (nonzero) digits is 69672960, while the sum is 66.

The spelling of 9798143850840 in words is "nine trillion, seven hundred ninety-eight billion, one hundred forty-three million, eight hundred fifty thousand, eight hundred forty".