635806982952 has 64 divisors (see below), whose sum is σ = 1782636465600. Its totient is φ = 209954946240.

The previous prime is 635806982947. The next prime is 635806982953. The reversal of 635806982952 is 259289608536.

It is a self number, because there is not a number n which added to its sum of digits gives 635806982952.

It is not an unprimeable number, because it can be changed into a prime (635806982953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13731799 + ... + 13778022.

It is an arithmetic number, because the mean of its divisors is an integer number (27853694775).

Almost surely, 2^635806982952 is an apocalyptic number.

It is an amenable number.

635806982952 is an abundant number, since it is smaller than the sum of its proper divisors (1146829482648).

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

635806982952 is a wasteful number, since it uses less digits than its factorization.

635806982952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27509943 (or 27509933 counting only the distinct ones).

The product of its (nonzero) digits is 55987200, while the sum is 63.

The spelling of 635806982952 in words is "six hundred thirty-five billion, eight hundred six million, nine hundred eighty-two thousand, nine hundred fifty-two".