9801718328 has 32 divisors (see below), whose sum is σ = 19350316800. Its totient is φ = 4641762528.

The previous prime is 9801718313. The next prime is 9801718331. The reversal of 9801718328 is 8238171089.

It is a super-2 number, since 2×9801718328² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1184975 + ... + 1193217.

It is an arithmetic number, because the mean of its divisors is an integer number (604697400).

Almost surely, 2^9801718328 is an apocalyptic number.

It is an amenable number.

9801718328 is a deficient number, since it is larger than the sum of its proper divisors (9548598472).

9801718328 is a wasteful number, since it uses less digits than its factorization.

9801718328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16091 (or 16087 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 47.

The square root of 9801718328 is about 99003.6278527206. The cubic root of 9801718328 is about 2140.1000279328.

The spelling of 9801718328 in words is "nine billion, eight hundred one million, seven hundred eighteen thousand, three hundred twenty-eight".