490208799049 has 4 divisors (see below), whose sum is σ = 491755199364. Its totient is φ = 488662398736.

The previous prime is 490208798969. The next prime is 490208799083. The reversal of 490208799049 is 940997802094.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 39824193600 + 450384605449 = 199560^2 + 671107^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-490208799049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (490208799149) 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 in 3 ways as a sum of consecutive naturals, for example, 773199682 + ... + 773200315.

It is an arithmetic number, because the mean of its divisors is an integer number (122938799841).

Almost surely, 2^490208799049 is an apocalyptic number.

It is an amenable number.

490208799049 is a deficient number, since it is larger than the sum of its proper divisors (1546400315).

490208799049 is a wasteful number, since it uses less digits than its factorization.

490208799049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1546400314.

The product of its (nonzero) digits is 11757312, while the sum is 61.

The spelling of 490208799049 in words is "four hundred ninety billion, two hundred eight million, seven hundred ninety-nine thousand, forty-nine".