485664238285 has 36 divisors (see below), whose sum is σ = 621593819964. Its totient is φ = 363020707840.

The previous prime is 485664238247. The next prime is 485664238289. The reversal of 485664238285 is 582832466584.

It can be written as a sum of positive squares in 18 ways, for example, as 367511175529 + 118153062756 = 606227^2 + 343734^2 .

It is a de Polignac number, because none of the positive numbers 2^k-485664238285 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (485664238289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1728342345 + ... + 1728342625.

It is an arithmetic number, because the mean of its divisors is an integer number (17266494999).

Almost surely, 2^485664238285 is an apocalyptic number.

It is an amenable number.

485664238285 is a deficient number, since it is larger than the sum of its proper divisors (135929581679).

485664238285 is an frugal number, since it uses more digits than its factorization.

485664238285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1122 (or 572 counting only the distinct ones).

The product of its digits is 88473600, while the sum is 61.

The spelling of 485664238285 in words is "four hundred eighty-five billion, six hundred sixty-four million, two hundred thirty-eight thousand, two hundred eighty-five".