63535600428 has 12 divisors (see below), whose sum is σ = 148249734360. Its totient is φ = 21178533472.

The previous prime is 63535600423. The next prime is 63535600501. The reversal of 63535600428 is 82400653536.

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

It is a self number, because there is not a number n which added to its sum of digits gives 63535600428.

It is not an unprimeable number, because it can be changed into a prime (63535600423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2647316673 + ... + 2647316696.

It is an arithmetic number, because the mean of its divisors is an integer number (12354144530).

Almost surely, 2^63535600428 is an apocalyptic number.

It is an amenable number.

63535600428 is an abundant number, since it is smaller than the sum of its proper divisors (84714133932).

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

63535600428 is a wasteful number, since it uses less digits than its factorization.

63535600428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5294633376 (or 5294633374 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 42.

The spelling of 63535600428 in words is "sixty-three billion, five hundred thirty-five million, six hundred thousand, four hundred twenty-eight".