63285536872 has 16 divisors (see below), whose sum is σ = 119993645700. Its totient is φ = 31287231360.

The previous prime is 63285536833. The next prime is 63285536893. The reversal of 63285536872 is 27863558236.

It can be written as a sum of positive squares in 2 ways, for example, as 62677125316 + 608411556 = 250354^2 + 24666^2 .

It is an unprimeable number.

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, 44441379 + ... + 44442802.

Almost surely, 2^63285536872 is an apocalyptic number.

It is an amenable number.

63285536872 is a deficient number, since it is larger than the sum of its proper divisors (56708108828).

63285536872 is a wasteful number, since it uses less digits than its factorization.

63285536872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88884276 (or 88884272 counting only the distinct ones).

The product of its digits is 14515200, while the sum is 55.

The spelling of 63285536872 in words is "sixty-three billion, two hundred eighty-five million, five hundred thirty-six thousand, eight hundred seventy-two".