9869741280 has 288 divisors, whose sum is σ = 38734585344. Its totient is φ = 2241727488.

The previous prime is 9869741267. The next prime is 9869741291. The reversal of 9869741280 is 821479689.

9869741280 is a `hidden beast` number, since 98 + 69 + 7 + 412 + 80 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1640037 + ... + 1646043.

It is an arithmetic number, because the mean of its divisors is an integer number (134495088).

Almost surely, 2^9869741280 is an apocalyptic number.

9869741280 is a gapful number since it is divisible by the number (90) 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 9869741280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19367292672).

9869741280 is an abundant number, since it is smaller than the sum of its proper divisors (28864844064).

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

9869741280 is a wasteful number, since it uses less digits than its factorization.

9869741280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6198 (or 6187 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 54.

The square root of 9869741280 is about 99346.5715563451. The cubic root of 9869741280 is about 2145.0393133454.

The spelling of 9869741280 in words is "nine billion, eight hundred sixty-nine million, seven hundred forty-one thousand, two hundred eighty".