999999610222783 has 2 divisors, whose sum is σ = 999999610222784. Its totient is φ = 999999610222782.

The previous prime is 999999610222751. The next prime is 999999610222817. The reversal of 999999610222783 is 387222016999999.

It is a weak prime.

It is an emirp because it is prime and its reverse (387222016999999) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 999999610222783 - 2⁵ = 999999610222751 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 999999610222783.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (999999610222733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499999805111391 + 499999805111392.

It is an arithmetic number, because the mean of its divisors is an integer number (499999805111392).

Almost surely, 2^{999999610222783} is an apocalyptic number.

999999610222783 is a deficient number, since it is larger than the sum of its proper divisors (1).

999999610222783 is an equidigital number, since it uses as much as digits as its factorization.

999999610222783 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4285540224, while the sum is 85.

The spelling of 999999610222783 in words is "nine hundred ninety-nine trillion, nine hundred ninety-nine billion, six hundred ten million, two hundred twenty-two thousand, seven hundred eighty-three".