636910009112 has 16 divisors (see below), whose sum is σ = 1286068287840. Its totient is φ = 293958465696.

The previous prime is 636910009091. The next prime is 636910009171. The reversal of 636910009112 is 211900019636.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 3062067248 + ... + 3062067455.

It is an arithmetic number, because the mean of its divisors is an integer number (80379267990).

Almost surely, 2^636910009112 is an apocalyptic number.

It is an amenable number.

636910009112 is an abundant number, since it is smaller than the sum of its proper divisors (649158278728).

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

636910009112 is a wasteful number, since it uses less digits than its factorization.

636910009112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6124134722 (or 6124134718 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 38.

The spelling of 636910009112 in words is "six hundred thirty-six billion, nine hundred ten million, nine thousand, one hundred twelve".