9849919488920 has 256 divisors, whose sum is σ = 27438030720000. Its totient is φ = 3170046523392.

The previous prime is 9849919488911. The next prime is 9849919488947. The reversal of 9849919488920 is 298849199489.

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, 88342247 + ... + 88453673.

It is an arithmetic number, because the mean of its divisors is an integer number (107179807500).

Almost surely, 2^{9849919488920} 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 9849919488920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13719015360000).

9849919488920 is an abundant number, since it is smaller than the sum of its proper divisors (17588111231080).

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

9849919488920 is a wasteful number, since it uses less digits than its factorization.

9849919488920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111855 (or 111837 counting only the distinct ones).

The product of its (nonzero) digits is 967458816, while the sum is 80.

The spelling of 9849919488920 in words is "nine trillion, eight hundred forty-nine billion, nine hundred nineteen million, four hundred eighty-eight thousand, nine hundred twenty".