636283087932 has 96 divisors (see below), whose sum is σ = 1571425486848. Its totient is φ = 199967353344.

The previous prime is 636283087919. The next prime is 636283087933. The reversal of 636283087932 is 239780382636.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (636283087933) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 34907373 + ... + 34925595.

It is an arithmetic number, because the mean of its divisors is an integer number (16369015488).

Almost surely, 2^636283087932 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 636283087932, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (785712743424).

636283087932 is an abundant number, since it is smaller than the sum of its proper divisors (935142398916).

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

636283087932 is a wasteful number, since it uses less digits than its factorization.

636283087932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20059 (or 20057 counting only the distinct ones).

The product of its (nonzero) digits is 15676416, while the sum is 57.

The spelling of 636283087932 in words is "six hundred thirty-six billion, two hundred eighty-three million, eighty-seven thousand, nine hundred thirty-two".