9906889770233 has 2 divisors, whose sum is σ = 9906889770234. Its totient is φ = 9906889770232.

The previous prime is 9906889770199. The next prime is 9906889770259. The reversal of 9906889770233 is 3320779886099.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9603385738489 + 303504031744 = 3098933^2 + 550912^2 .

It is a cyclic number.

It is not a de Polignac number, because 9906889770233 - 2¹⁶ = 9906889704697 is a prime.

It is not a weakly prime, because it can be changed into another prime (9906889770293) 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, 4953444885116 + 4953444885117.

It is an arithmetic number, because the mean of its divisors is an integer number (4953444885117).

Almost surely, 2^{9906889770233} is an apocalyptic number.

It is an amenable number.

9906889770233 is a deficient number, since it is larger than the sum of its proper divisors (1).

9906889770233 is an equidigital number, since it uses as much as digits as its factorization.

9906889770233 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 246903552, while the sum is 71.

The spelling of 9906889770233 in words is "nine trillion, nine hundred six billion, eight hundred eighty-nine million, seven hundred seventy thousand, two hundred thirty-three".