63648273248 has 144 divisors (see below), whose sum is σ = 148944567744. Its totient is φ = 26686033920.

The previous prime is 63648273239. The next prime is 63648273251. The reversal of 63648273248 is 84237284636.

It is a super-2 number, since 2×63648273248² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is a self number, because there is not a number n which added to its sum of digits gives 63648273248.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35816936 + ... + 35818712.

It is an arithmetic number, because the mean of its divisors is an integer number (1034337276).

Almost surely, 2^63648273248 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 63648273248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74472283872).

63648273248 is an abundant number, since it is smaller than the sum of its proper divisors (85296294496).

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

63648273248 is a wasteful number, since it uses less digits than its factorization.

63648273248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2285 (or 2270 counting only the distinct ones).

The product of its digits is 9289728, while the sum is 53.

The spelling of 63648273248 in words is "sixty-three billion, six hundred forty-eight million, two hundred seventy-three thousand, two hundred forty-eight".