11509328858 has 8 divisors (see below), whose sum is σ = 17685066420. Its totient is φ = 5614306720.

The previous prime is 11509328783. The next prime is 11509328911. The reversal of 11509328858 is 85882390511.

It is a happy number.

11509328858 is digitally balanced in base 2 and base 5, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 9298166329 + 2211162529 = 96427^2 + 47023^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70178753 + ... + 70178916.

Almost surely, 2^11509328858 is an apocalyptic number.

11509328858 is a deficient number, since it is larger than the sum of its proper divisors (6175737562).

11509328858 is a wasteful number, since it uses less digits than its factorization.

11509328858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140357712.

The product of its (nonzero) digits is 691200, while the sum is 50.

The spelling of 11509328858 in words is "eleven billion, five hundred nine million, three hundred twenty-eight thousand, eight hundred fifty-eight".