9318400000 has 384 divisors, whose sum is σ = 28669727520. Its totient is φ = 2949120000.

The previous prime is 9318399991. The next prime is 9318400001. The reversal of 9318400000 is 48139.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9318400001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 716799994 + ... + 716800006.

Almost surely, 2^9318400000 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 9318400000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14334863760).

9318400000 is an abundant number, since it is smaller than the sum of its proper divisors (19351327520).

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

9318400000 is an frugal number, since it uses more digits than its factorization.

9318400000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75 (or 27 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 9318400000 is about 96531.8600255895. The cubic root of 9318400000 is about 2104.3296914285.

Adding to 9318400000 its reverse (48139), we get a palindrome (9318448139).

The spelling of 9318400000 in words is "nine billion, three hundred eighteen million, four hundred thousand".