9993983915 has 16 divisors (see below), whose sum is σ = 12410621280. Its totient is φ = 7716817920.

The previous prime is 9993983903. The next prime is 9993983971. The reversal of 9993983915 is 5193893999.

9993983915 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9993983915 - 2¹⁰ = 9993982891 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 477092 + ... + 497598.

It is an arithmetic number, because the mean of its divisors is an integer number (775663830).

Almost surely, 2^9993983915 is an apocalyptic number.

9993983915 is a deficient number, since it is larger than the sum of its proper divisors (2416637365).

9993983915 is a wasteful number, since it uses less digits than its factorization.

9993983915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23902.

The product of its digits is 21257640, while the sum is 65.

The square root of 9993983915 is about 99969.9150494788. The cubic root of 9993983915 is about 2154.0025612888.

The spelling of 9993983915 in words is "nine billion, nine hundred ninety-three million, nine hundred eighty-three thousand, nine hundred fifteen".