63723328448 has 56 divisors (see below), whose sum is σ = 143345275920. Its totient is φ = 27862824960.

The previous prime is 63723328441. The next prime is 63723328451. The reversal of 63723328448 is 84482332736.

It is a happy number.

63723328448 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 63723328396 and 63723328405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63723328441) 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, 1999733 + ... + 2031348.

It is an arithmetic number, because the mean of its divisors is an integer number (2559737070).

Almost surely, 2^63723328448 is an apocalyptic number.

It is an amenable number.

63723328448 is an abundant number, since it is smaller than the sum of its proper divisors (79621947472).

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

63723328448 is a wasteful number, since it uses less digits than its factorization.

63723328448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4031125 (or 4031115 counting only the distinct ones).

The product of its digits is 4644864, while the sum is 50.

The spelling of 63723328448 in words is "sixty-three billion, seven hundred twenty-three million, three hundred twenty-eight thousand, four hundred forty-eight".