9859059171090 has 320 divisors, whose sum is σ = 28232455680000. Its totient is φ = 2461666204800.

The previous prime is 9859059171089. The next prime is 9859059171097. The reversal of 9859059171090 is 901719509589.

It is not an unprimeable number, because it can be changed into a prime (9859059171097) by changing a digit.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 462443451 + ... + 462464769.

It is an arithmetic number, because the mean of its divisors is an integer number (88226424000).

Almost surely, 2^{9859059171090} is an apocalyptic number.

9859059171090 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 9859059171090, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14116227840000).

9859059171090 is an abundant number, since it is smaller than the sum of its proper divisors (18373396508910).

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

9859059171090 is a wasteful number, since it uses less digits than its factorization.

9859059171090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21707 (or 21698 counting only the distinct ones).

The product of its (nonzero) digits is 9185400, while the sum is 63.

The spelling of 9859059171090 in words is "nine trillion, eight hundred fifty-nine billion, fifty-nine million, one hundred seventy-one thousand, ninety".