9801856204 has 48 divisors (see below), whose sum is σ = 20360309760. Its totient is φ = 4041699840.

The previous prime is 9801856193. The next prime is 9801856237. The reversal of 9801856204 is 4026581089.

It is a happy 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, 14524 + ... + 140764.

It is an arithmetic number, because the mean of its divisors is an integer number (424173120).

Almost surely, 2^9801856204 is an apocalyptic number.

9801856204 is a gapful number since it is divisible by the number (94) 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 9801856204, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10180154880).

9801856204 is an abundant number, since it is smaller than the sum of its proper divisors (10558453556).

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

9801856204 is a wasteful number, since it uses less digits than its factorization.

9801856204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126358 (or 126356 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 43.

The square root of 9801856204 is about 99004.3241681897. The cubic root of 9801856204 is about 2140.1100624675.

The spelling of 9801856204 in words is "nine billion, eight hundred one million, eight hundred fifty-six thousand, two hundred four".