9399818447352 has 256 divisors, whose sum is σ = 26582022720000. Its totient is φ = 3077289805824.

The previous prime is 9399818447321. The next prime is 9399818447353. The reversal of 9399818447352 is 2537448189939.

9399818447352 is a `hidden beast` number, since 9 + 3 + 9 + 98 + 18 + 4 + 473 + 52 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9399818447353) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2042104683 + ... + 2042109285.

It is an arithmetic number, because the mean of its divisors is an integer number (103836026250).

Almost surely, 2^{9399818447352} 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 9399818447352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13291011360000).

9399818447352 is an abundant number, since it is smaller than the sum of its proper divisors (17182204272648).

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

9399818447352 is a wasteful number, since it uses less digits than its factorization.

9399818447352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5467 (or 5457 counting only the distinct ones).

The product of its digits is 470292480, while the sum is 72.

The spelling of 9399818447352 in words is "nine trillion, three hundred ninety-nine billion, eight hundred eighteen million, four hundred forty-seven thousand, three hundred fifty-two".