499897077149 has 2 divisors, whose sum is σ = 499897077150. Its totient is φ = 499897077148.

The previous prime is 499897077073. The next prime is 499897077181. The reversal of 499897077149 is 941770798994.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 282944205625 + 216952871524 = 531925^2 + 465782^2 .

It is a cyclic number.

It is not a de Polignac number, because 499897077149 - 2²⁸ = 499628641693 is a prime.

It is a super-2 number, since 2×499897077149² (a number of 24 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (499897277149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249948538574 + 249948538575.

It is an arithmetic number, because the mean of its divisors is an integer number (249948538575).

Almost surely, 2^499897077149 is an apocalyptic number.

It is an amenable number.

499897077149 is a deficient number, since it is larger than the sum of its proper divisors (1).

499897077149 is an equidigital number, since it uses as much as digits as its factorization.

499897077149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288054144, while the sum is 74.

The spelling of 499897077149 in words is "four hundred ninety-nine billion, eight hundred ninety-seven million, seventy-seven thousand, one hundred forty-nine".