490438302985 has 16 divisors (see below), whose sum is σ = 592990917120. Its totient is φ = 389376207360.

The previous prime is 490438302983. The next prime is 490438303123. The reversal of 490438302985 is 589203834094.

It is not a de Polignac number, because 490438302985 - 2¹ = 490438302983 is a prime.

It is not an unprimeable number, because it can be changed into a prime (490438302983) 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 15 ways as a sum of consecutive naturals, for example, 1664569 + ... + 1936921.

It is an arithmetic number, because the mean of its divisors is an integer number (37061932320).

Almost surely, 2^490438302985 is an apocalyptic number.

It is an amenable number.

490438302985 is a deficient number, since it is larger than the sum of its proper divisors (102552614135).

490438302985 is a wasteful number, since it uses less digits than its factorization.

490438302985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275088.

The product of its (nonzero) digits is 7464960, while the sum is 55.

The spelling of 490438302985 in words is "four hundred ninety billion, four hundred thirty-eight million, three hundred two thousand, nine hundred eighty-five".