9618854538120 has 256 divisors, whose sum is σ = 29214307584000. Its totient is φ = 2533443993600.

The previous prime is 9618854538103. The next prime is 9618854538131. The reversal of 9618854538120 is 218354588169.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3617469351 + ... + 3617472009.

It is an arithmetic number, because the mean of its divisors is an integer number (114118389000).

Almost surely, 2^{9618854538120} 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 9618854538120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14607153792000).

9618854538120 is an abundant number, since it is smaller than the sum of its proper divisors (19595453045880).

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

9618854538120 is a wasteful number, since it uses less digits than its factorization.

9618854538120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3804 (or 3800 counting only the distinct ones).

The product of its (nonzero) digits is 16588800, while the sum is 60.

The spelling of 9618854538120 in words is "nine trillion, six hundred eighteen billion, eight hundred fifty-four million, five hundred thirty-eight thousand, one hundred twenty".