63453680 has 40 divisors (see below), whose sum is σ = 147981600. Its totient is φ = 25303808.

The previous prime is 63453679. The next prime is 63453697. The reversal of 63453680 is 8635436.

63453680 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 63453680.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 30101 + ... + 32139.

It is an arithmetic number, because the mean of its divisors is an integer number (3699540).

Almost surely, 2^63453680 is an apocalyptic number.

It is an amenable number.

63453680 is an abundant number, since it is smaller than the sum of its proper divisors (84527920).

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

63453680 is a wasteful number, since it uses less digits than its factorization.

63453680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2441 (or 2435 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 35.

The square root of 63453680 is about 7965.7818197588. The cubic root of 63453680 is about 398.8585793286.

The spelling of 63453680 in words is "sixty-three million, four hundred fifty-three thousand, six hundred eighty".