499969379317 has 2 divisors, whose sum is σ = 499969379318. Its totient is φ = 499969379316.

The previous prime is 499969379293. The next prime is 499969379339. The reversal of 499969379317 is 713973969994.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 294877236676 + 205092142641 = 543026^2 + 452871^2 .

It is a cyclic number.

It is not a de Polignac number, because 499969379317 - 2¹⁵ = 499969346549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (499969379617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249984689658 + 249984689659.

It is an arithmetic number, because the mean of its divisors is an integer number (249984689659).

Almost surely, 2^499969379317 is an apocalyptic number.

It is an amenable number.

499969379317 is a deficient number, since it is larger than the sum of its proper divisors (1).

499969379317 is an equidigital number, since it uses as much as digits as its factorization.

499969379317 is an evil number, because the sum of its binary digits is even.

The product of its digits is 624974616, while the sum is 76.

The spelling of 499969379317 in words is "four hundred ninety-nine billion, nine hundred sixty-nine million, three hundred seventy-nine thousand, three hundred seventeen".