9993091853 has 2 divisors, whose sum is σ = 9993091854. Its totient is φ = 9993091852.

The previous prime is 9993091813. The next prime is 9993091897. The reversal of 9993091853 is 3581903999.

9993091853 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8285914729 + 1707177124 = 91027^2 + 41318^2 .

It is a cyclic number.

It is not a de Polignac number, because 9993091853 - 2¹⁰ = 9993090829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9993091813) by changing a digit.

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 as a sum of consecutive naturals, namely, 4996545926 + 4996545927.

It is an arithmetic number, because the mean of its divisors is an integer number (4996545927).

Almost surely, 2^9993091853 is an apocalyptic number.

It is an amenable number.

9993091853 is a deficient number, since it is larger than the sum of its proper divisors (1).

9993091853 is an equidigital number, since it uses as much as digits as its factorization.

9993091853 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2361960, while the sum is 56.

The square root of 9993091853 is about 99965.4532976268. The cubic root of 9993091853 is about 2153.9384706978.

The spelling of 9993091853 in words is "nine billion, nine hundred ninety-three million, ninety-one thousand, eight hundred fifty-three".