490550455669 has 12 divisors (see below), whose sum is σ = 521660199844. Its totient is φ = 461201554944.

The previous prime is 490550455607. The next prime is 490550455727. The reversal of 490550455669 is 966554055094.

It can be written as a sum of positive squares in 6 ways, for example, as 37469344900 + 453081110769 = 193570^2 + 673113^2 .

It is not a de Polignac number, because 490550455669 - 2⁷ = 490550455541 is a prime.

It is a super-2 number, since 2×490550455669² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (490550458669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 634974 + ... + 1176559.

Almost surely, 2^490550455669 is an apocalyptic number.

It is an amenable number.

490550455669 is a deficient number, since it is larger than the sum of its proper divisors (31109744175).

490550455669 is a wasteful number, since it uses less digits than its factorization.

490550455669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1812504 (or 1812487 counting only the distinct ones).

The product of its (nonzero) digits is 29160000, while the sum is 58.

The spelling of 490550455669 in words is "four hundred ninety billion, five hundred fifty million, four hundred fifty-five thousand, six hundred sixty-nine".