1009999999933 has 2 divisors, whose sum is σ = 1009999999934. Its totient is φ = 1009999999932.

The previous prime is 1009999999909. The next prime is 1010000000011. The reversal of 1009999999933 is 3399999999001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 865871192484 + 144128807449 = 930522^2 + 379643^2 .

It is an emirp because it is prime and its reverse (3399999999001) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1009999999933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1009999999903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 504999999966 + 504999999967.

It is an arithmetic number, because the mean of its divisors is an integer number (504999999967).

Almost surely, 2^{1009999999933} is an apocalyptic number.

It is an amenable number.

1009999999933 is a deficient number, since it is larger than the sum of its proper divisors (1).

1009999999933 is an equidigital number, since it uses as much as digits as its factorization.

1009999999933 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 387420489, while the sum is 79.

The spelling of 1009999999933 in words is "one trillion, nine billion, nine hundred ninety-nine million, nine hundred ninety-nine thousand, nine hundred thirty-three".