63755425044 has 72 divisors (see below), whose sum is σ = 164529211392. Its totient is φ = 20809064640.

The previous prime is 63755425039. The next prime is 63755425073. The reversal of 63755425044 is 44052455736.

63755425044 is a `hidden beast` number, since 6 + 3 + 7 + 554 + 2 + 50 + 44 = 666.

It is a super-2 number, since 2×63755425044² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 926509 + ... + 992939.

It is an arithmetic number, because the mean of its divisors is an integer number (2285127936).

Almost surely, 2^63755425044 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 63755425044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82264605696).

63755425044 is an abundant number, since it is smaller than the sum of its proper divisors (100773786348).

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

63755425044 is a wasteful number, since it uses less digits than its factorization.

63755425044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66997 (or 66992 counting only the distinct ones).

The product of its (nonzero) digits is 2016000, while the sum is 45.

The spelling of 63755425044 in words is "sixty-three billion, seven hundred fifty-five million, four hundred twenty-five thousand, forty-four".