63440718048 has 192 divisors, whose sum is σ = 200478136320. Its totient is φ = 19439917056.

The previous prime is 63440718023. The next prime is 63440718053. The reversal of 63440718048 is 84081704436.

63440718048 is a `hidden beast` number, since 63 + 4 + 407 + 180 + 4 + 8 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 63440717994 and 63440718012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 581361 + ... + 681807.

It is an arithmetic number, because the mean of its divisors is an integer number (1044156960).

Almost surely, 2^63440718048 is an apocalyptic number.

63440718048 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63440718048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100239068160).

63440718048 is an abundant number, since it is smaller than the sum of its proper divisors (137037418272).

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

63440718048 is a wasteful number, since it uses less digits than its factorization.

63440718048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100526 (or 100512 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 45.

The spelling of 63440718048 in words is "sixty-three billion, four hundred forty million, seven hundred eighteen thousand, forty-eight".