9818993793 has 16 divisors (see below), whose sum is σ = 15749765120. Its totient is φ = 5315545296.

The previous prime is 9818993759. The next prime is 9818993801. The reversal of 9818993793 is 3973998189.

9818993793 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9818993793 - 2¹⁴ = 9818977409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9818993693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12304105 + ... + 12304902.

It is an arithmetic number, because the mean of its divisors is an integer number (984360320).

Almost surely, 2^9818993793 is an apocalyptic number.

It is an amenable number.

9818993793 is a deficient number, since it is larger than the sum of its proper divisors (5930771327).

9818993793 is a wasteful number, since it uses less digits than its factorization.

9818993793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24609036.

The product of its digits is 26453952, while the sum is 66.

The square root of 9818993793 is about 99090.8360697396. The cubic root of 9818993793 is about 2141.3565941328.

The spelling of 9818993793 in words is "nine billion, eight hundred eighteen million, nine hundred ninety-three thousand, seven hundred ninety-three".