5285286638 has 8 divisors (see below), whose sum is σ = 8394278832. Its totient is φ = 2487193696.

The previous prime is 5285286637. The next prime is 5285286659. The reversal of 5285286638 is 8366825825.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 5285286638.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5285286637) 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, 77724770 + ... + 77724837.

It is an arithmetic number, because the mean of its divisors is an integer number (1049284854).

Almost surely, 2^5285286638 is an apocalyptic number.

5285286638 is a deficient number, since it is larger than the sum of its proper divisors (3108992194).

5285286638 is a wasteful number, since it uses less digits than its factorization.

5285286638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155449626.

The product of its digits is 5529600, while the sum is 53.

The square root of 5285286638 is about 72699.9768775754. The cubic root of 5285286638 is about 1741.8985132818.

The spelling of 5285286638 in words is "five billion, two hundred eighty-five million, two hundred eighty-six thousand, six hundred thirty-eight".