63345689472 has 128 divisors (see below), whose sum is σ = 181603215360. Its totient is φ = 19448174592.

The previous prime is 63345689471. The next prime is 63345689503. The reversal of 63345689472 is 27498654336.

63345689472 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 (128).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63345689471) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2297593 + ... + 2324999.

It is an arithmetic number, because the mean of its divisors is an integer number (1418775120).

Almost surely, 2^63345689472 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63345689472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90801607680).

63345689472 is an abundant number, since it is smaller than the sum of its proper divisors (118257525888).

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

63345689472 is a wasteful number, since it uses less digits than its factorization.

63345689472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27900 (or 27888 counting only the distinct ones).

The product of its digits is 26127360, while the sum is 57.

The spelling of 63345689472 in words is "sixty-three billion, three hundred forty-five million, six hundred eighty-nine thousand, four hundred seventy-two".