9861105450 has 288 divisors, whose sum is σ = 30172443840. Its totient is φ = 2119219200.

The previous prime is 9861105437. The next prime is 9861105497. The reversal of 9861105450 is 545011689.

It is a junction number, because it is equal to n+sod(n) for n = 9861105399 and 9861105408.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 33655504 + ... + 33655796.

It is an arithmetic number, because the mean of its divisors is an integer number (104765430).

Almost surely, 2^9861105450 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9861105450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15086221920).

9861105450 is an abundant number, since it is smaller than the sum of its proper divisors (20311338390).

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

9861105450 is a wasteful number, since it uses less digits than its factorization.

9861105450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 582 (or 570 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 39.

The square root of 9861105450 is about 99303.0988942440. The cubic root of 9861105450 is about 2144.4135083479.

The spelling of 9861105450 in words is "nine billion, eight hundred sixty-one million, one hundred five thousand, four hundred fifty".