53443732128 has 48 divisors (see below), whose sum is σ = 140305445280. Its totient is φ = 17812590336.

The previous prime is 53443732123. The next prime is 53443732157. The reversal of 53443732128 is 82123734435.

It is a tau number, because it is divible by the number of its divisors (48).

It is a self number, because there is not a number n which added to its sum of digits gives 53443732128.

It is not an unprimeable number, because it can be changed into a prime (53443732123) 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 7 ways as a sum of consecutive naturals, for example, 1017618 + ... + 1068846.

It is an arithmetic number, because the mean of its divisors is an integer number (2923030110).

Almost surely, 2^53443732128 is an apocalyptic number.

It is an amenable number.

53443732128 is an abundant number, since it is smaller than the sum of its proper divisors (86861713152).

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

53443732128 is a wasteful number, since it uses less digits than its factorization.

53443732128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62109 (or 62101 counting only the distinct ones).

The product of its digits is 483840, while the sum is 42.

The spelling of 53443732128 in words is "fifty-three billion, four hundred forty-three million, seven hundred thirty-two thousand, one hundred twenty-eight".