9993351943 has 2 divisors, whose sum is σ = 9993351944. Its totient is φ = 9993351942.

The previous prime is 9993351937. The next prime is 9993352067. The reversal of 9993351943 is 3491533999.

9993351943 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9993351943 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9993351343) 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, 4996675971 + 4996675972.

It is an arithmetic number, because the mean of its divisors is an integer number (4996675972).

Almost surely, 2^9993351943 is an apocalyptic number.

9993351943 is a deficient number, since it is larger than the sum of its proper divisors (1).

9993351943 is an equidigital number, since it uses as much as digits as its factorization.

9993351943 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3542940, while the sum is 55.

The square root of 9993351943 is about 99966.7541885801. The cubic root of 9993351943 is about 2153.9571573734.

The spelling of 9993351943 in words is "nine billion, nine hundred ninety-three million, three hundred fifty-one thousand, nine hundred forty-three".