499644330766829 has 2 divisors, whose sum is σ = 499644330766830. Its totient is φ = 499644330766828.

The previous prime is 499644330766799. The next prime is 499644330766993. The reversal of 499644330766829 is 928667033446994.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 431987043352804 + 67657287414025 = 20784298^2 + 8225405^2 .

It is a cyclic number.

It is not a de Polignac number, because 499644330766829 - 2²⁸ = 499644062331373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (499644330766429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249822165383414 + 249822165383415.

It is an arithmetic number, because the mean of its divisors is an integer number (249822165383415).

Almost surely, 2^{499644330766829} is an apocalyptic number.

It is an amenable number.

499644330766829 is a deficient number, since it is larger than the sum of its proper divisors (1).

499644330766829 is an equidigital number, since it uses as much as digits as its factorization.

499644330766829 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10158317568, while the sum is 80.

The spelling of 499644330766829 in words is "four hundred ninety-nine trillion, six hundred forty-four billion, three hundred thirty million, seven hundred sixty-six thousand, eight hundred twenty-nine".