9540843768 has 128 divisors (see below), whose sum is σ = 29538432000. Its totient is φ = 2835648000.

The previous prime is 9540843731. The next prime is 9540843797. The reversal of 9540843768 is 8673480459.

9540843768 is a `hidden beast` number, since 9 + 540 + 8 + 4 + 37 + 68 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1393 + ... + 138143.

It is an arithmetic number, because the mean of its divisors is an integer number (230769000).

Almost surely, 2^9540843768 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 9540843768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14769216000).

9540843768 is an abundant number, since it is smaller than the sum of its proper divisors (19997588232).

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

9540843768 is a wasteful number, since it uses less digits than its factorization.

9540843768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136802 (or 136792 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 54.

The square root of 9540843768 is about 97677.2428357803. The cubic root of 9540843768 is about 2120.9426631348.

The spelling of 9540843768 in words is "nine billion, five hundred forty million, eight hundred forty-three thousand, seven hundred sixty-eight".