9898156800 has 864 divisors, whose sum is σ = 42580608000. Its totient is φ = 2248888320.

The previous prime is 9898156781. The next prime is 9898156817. The reversal of 9898156800 is 86518989.

It is a tau number, because it is divible by the number of its divisors (864).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 59270317 + ... + 59270483.

Almost surely, 2^9898156800 is an apocalyptic number.

9898156800 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9898156800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21290304000).

9898156800 is an abundant number, since it is smaller than the sum of its proper divisors (32682451200).

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

9898156800 is a wasteful number, since it uses less digits than its factorization.

9898156800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223 (or 184 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 54.

The square root of 9898156800 is about 99489.4808509925. The cubic root of 9898156800 is about 2147.0959024044.

The spelling of 9898156800 in words is "nine billion, eight hundred ninety-eight million, one hundred fifty-six thousand, eight hundred".