9118402728 has 32 divisors (see below), whose sum is σ = 22858143360. Its totient is φ = 3031182720.

The previous prime is 9118402717. The next prime is 9118402751. The reversal of 9118402728 is 8272048119.

It is a self number, because there is not a number n which added to its sum of digits gives 9118402728.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 508813 + ... + 526428.

It is an arithmetic number, because the mean of its divisors is an integer number (714316980).

Almost surely, 2^9118402728 is an apocalyptic number.

It is an amenable number.

9118402728 is an abundant number, since it is smaller than the sum of its proper divisors (13739740632).

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

9118402728 is a wasteful number, since it uses less digits than its factorization.

9118402728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1035617 (or 1035613 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 42.

The square root of 9118402728 is about 95490.3279290631. The cubic root of 9118402728 is about 2089.1658742649.

The spelling of 9118402728 in words is "nine billion, one hundred eighteen million, four hundred two thousand, seven hundred twenty-eight".