8961853500 has 192 divisors, whose sum is σ = 30523584000. Its totient is φ = 2263982400.

The previous prime is 8961853489. The next prime is 8961853529. The reversal of 8961853500 is 53581698.

8961853500 is a `hidden beast` number, since 8 + 9 + 61 + 85 + 3 + 500 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 239031 + ... + 273969.

It is an arithmetic number, because the mean of its divisors is an integer number (158977000).

Almost surely, 2^8961853500 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 8961853500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15261792000).

8961853500 is an abundant number, since it is smaller than the sum of its proper divisors (21561730500).

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

8961853500 is a wasteful number, since it uses less digits than its factorization.

8961853500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34986 (or 34968 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 45.

The square root of 8961853500 is about 94667.0666071364. The cubic root of 8961853500 is about 2077.1408494347.

The spelling of 8961853500 in words is "eight billion, nine hundred sixty-one million, eight hundred fifty-three thousand, five hundred".