635718844452 has 24 divisors (see below), whose sum is σ = 1483543045600. Its totient is φ = 211877842176.

The previous prime is 635718844421. The next prime is 635718844459. The reversal of 635718844452 is 254448817536.

It is a junction number, because it is equal to n+sod(n) for n = 635718844392 and 635718844401.

It is not an unprimeable number, because it can be changed into a prime (635718844459) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3461677 + ... + 3640692.

Almost surely, 2^635718844452 is an apocalyptic number.

It is an amenable number.

635718844452 is an abundant number, since it is smaller than the sum of its proper divisors (847824201148).

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

635718844452 is a wasteful number, since it uses less digits than its factorization.

635718844452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7109835 (or 7109833 counting only the distinct ones).

The product of its digits is 25804800, while the sum is 57.

The spelling of 635718844452 in words is "six hundred thirty-five billion, seven hundred eighteen million, eight hundred forty-four thousand, four hundred fifty-two".