53644140288 has 216 divisors, whose sum is σ = 165369885408. Its totient is φ = 16664887296.

The previous prime is 53644140287. The next prime is 53644140307. The reversal of 53644140288 is 88204144635.

53644140288 is a `hidden beast` number, since 5 + 364 + 4 + 1 + 4 + 0 + 288 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53644140281) by changing a digit.

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, 4027656 + ... + 4040952.

Almost surely, 2^53644140288 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 53644140288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82684942704).

53644140288 is an abundant number, since it is smaller than the sum of its proper divisors (111725745120).

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

53644140288 is a wasteful number, since it uses less digits than its factorization.

53644140288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13439 (or 13422 counting only the distinct ones).

The product of its (nonzero) digits is 737280, while the sum is 45.

The spelling of 53644140288 in words is "fifty-three billion, six hundred forty-four million, one hundred forty thousand, two hundred eighty-eight".