636201012 has 48 divisors (see below), whose sum is σ = 1515064320. Its totient is φ = 207722592.

The previous prime is 636200993. The next prime is 636201017. The reversal of 636201012 is 210102636.

It is a happy number.

636201012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 636201012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (636201017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 215893 + ... + 218819.

It is an arithmetic number, because the mean of its divisors is an integer number (31563840).

Almost surely, 2^636201012 is an apocalyptic number.

It is an amenable number.

636201012 is an abundant number, since it is smaller than the sum of its proper divisors (878863308).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

636201012 is a wasteful number, since it uses less digits than its factorization.

636201012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3300 (or 3298 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 636201012 is about 25223.0254331236. The cubic root of 636201012 is about 860.0653510822.

Adding to 636201012 its reverse (210102636), we get a palindrome (846303648).

The spelling of 636201012 in words is "six hundred thirty-six million, two hundred one thousand, twelve".