635732768652 has 12 divisors (see below), whose sum is σ = 1483376460216. Its totient is φ = 211910922880.

The previous prime is 635732768633. The next prime is 635732768683. The reversal of 635732768652 is 256867237536.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26488865349 + ... + 26488865372.

It is an arithmetic number, because the mean of its divisors is an integer number (123614705018).

Almost surely, 2^635732768652 is an apocalyptic number.

It is an amenable number.

635732768652 is an abundant number, since it is smaller than the sum of its proper divisors (847643691564).

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

635732768652 is a wasteful number, since it uses less digits than its factorization.

635732768652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52977730728 (or 52977730726 counting only the distinct ones).

The product of its digits is 76204800, while the sum is 60.

The spelling of 635732768652 in words is "six hundred thirty-five billion, seven hundred thirty-two million, seven hundred sixty-eight thousand, six hundred fifty-two".