9898551936 has 768 divisors, whose sum is σ = 37425024000. Its totient is φ = 2492743680.

The previous prime is 9898551913. The next prime is 9898552007. The reversal of 9898551936 is 6391558989.

9898551936 is a `hidden beast` number, since 9 + 8 + 9 + 85 + 519 + 36 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 210607465 + ... + 210607511.

It is an arithmetic number, because the mean of its divisors is an integer number (48730500).

Almost surely, 2^9898551936 is an apocalyptic number.

9898551936 is a gapful number since it is divisible by the number (96) 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 9898551936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18712512000).

9898551936 is an abundant number, since it is smaller than the sum of its proper divisors (27526472064).

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

9898551936 is a wasteful number, since it uses less digits than its factorization.

9898551936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142 (or 113 counting only the distinct ones).

The product of its digits is 20995200, while the sum is 63.

The square root of 9898551936 is about 99491.4666491554. The cubic root of 9898551936 is about 2147.1244728280.

The spelling of 9898551936 in words is "nine billion, eight hundred ninety-eight million, five hundred fifty-one thousand, nine hundred thirty-six".