999942902317 has 2 divisors, whose sum is σ = 999942902318. Its totient is φ = 999942902316.

The previous prime is 999942902311. The next prime is 999942902323. The reversal of 999942902317 is 713209249999.

It is a balanced prime because it is at equal distance from previous prime (999942902311) and next prime (999942902323).

It can be written as a sum of positive squares in only one way, i.e., 894880052361 + 105062849956 = 945981^2 + 324134^2 .

It is a cyclic number.

It is not a de Polignac number, because 999942902317 - 2³⁵ = 965583163949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (999942902311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499971451158 + 499971451159.

It is an arithmetic number, because the mean of its divisors is an integer number (499971451159).

Almost surely, 2^999942902317 is an apocalyptic number.

It is an amenable number.

999942902317 is a deficient number, since it is larger than the sum of its proper divisors (1).

999942902317 is an equidigital number, since it uses as much as digits as its factorization.

999942902317 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19840464, while the sum is 64.

The spelling of 999942902317 in words is "nine hundred ninety-nine billion, nine hundred forty-two million, nine hundred two thousand, three hundred seventeen".