53641318528 has 128 divisors (see below), whose sum is σ = 123982387200. Its totient is φ = 22641914880.

The previous prime is 53641318477. The next prime is 53641318537. The reversal of 53641318528 is 82581314635.

It is a tau number, because it is divible by the number of its divisors (128).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41549563 + ... + 41550853.

It is an arithmetic number, because the mean of its divisors is an integer number (968612400).

Almost surely, 2^53641318528 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 53641318528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61991193600).

53641318528 is an abundant number, since it is smaller than the sum of its proper divisors (70341068672).

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

53641318528 is a wasteful number, since it uses less digits than its factorization.

53641318528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1978 (or 1966 counting only the distinct ones).

The product of its digits is 691200, while the sum is 46.

The spelling of 53641318528 in words is "fifty-three billion, six hundred forty-one million, three hundred eighteen thousand, five hundred twenty-eight".