9120000000 has 384 divisors, whose sum is σ = 31992105600. Its totient is φ = 2304000000.

The previous prime is 9119999983. The next prime is 9120000053. The reversal of 9120000000 is 219.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (384).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 479999991 + ... + 480000009.

It is an arithmetic number, because the mean of its divisors is an integer number (83312775).

Almost surely, 2^9120000000 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 9120000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15996052800).

9120000000 is an abundant number, since it is smaller than the sum of its proper divisors (22872105600).

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

9120000000 is an frugal number, since it uses more digits than its factorization.

9120000000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79 (or 29 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 9120000000 is about 95498.6910905066. The cubic root of 9120000000 is about 2089.2878536446.

Adding to 9120000000 its reverse (219), we get a palindrome (9120000219).

The spelling of 9120000000 in words is "nine billion, one hundred twenty million", and thus it is an aban number.