636303385676 has 48 divisors (see below), whose sum is σ = 1300944454656. Its totient is φ = 266640349824.

The previous prime is 636303385667. The next prime is 636303385721. The reversal of 636303385676 is 676583303636.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1125395 + ... + 1593461.

It is an arithmetic number, because the mean of its divisors is an integer number (27103009472).

Almost surely, 2^636303385676 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 636303385676, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (650472227328).

636303385676 is an abundant number, since it is smaller than the sum of its proper divisors (664641068980).

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

636303385676 is a wasteful number, since it uses less digits than its factorization.

636303385676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469158 (or 469156 counting only the distinct ones).

The product of its (nonzero) digits is 29393280, while the sum is 56.

The spelling of 636303385676 in words is "six hundred thirty-six billion, three hundred three million, three hundred eighty-five thousand, six hundred seventy-six".