9128248985 has 16 divisors (see below), whose sum is σ = 11024640000. Its totient is φ = 7255496640.

The previous prime is 9128248981. The next prime is 9128248999. The reversal of 9128248985 is 5898428219.

It is a happy number.

It is not a de Polignac number, because 9128248985 - 2² = 9128248981 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9128248985.

It is not an unprimeable number, because it can be changed into a prime (9128248981) 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 15 ways as a sum of consecutive naturals, for example, 1823516 + ... + 1828514.

It is an arithmetic number, because the mean of its divisors is an integer number (689040000).

Almost surely, 2^9128248985 is an apocalyptic number.

It is an amenable number.

9128248985 is a deficient number, since it is larger than the sum of its proper divisors (1896391015).

9128248985 is a wasteful number, since it uses less digits than its factorization.

9128248985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7288.

The product of its digits is 3317760, while the sum is 56.

The square root of 9128248985 is about 95541.8703239580. The cubic root of 9128248985 is about 2089.9175799095.

The spelling of 9128248985 in words is "nine billion, one hundred twenty-eight million, two hundred forty-eight thousand, nine hundred eighty-five".