53043638328 has 24 divisors (see below), whose sum is σ = 143659854000. Its totient is φ = 17681212752.

The previous prime is 53043638281. The next prime is 53043638353. The reversal of 53043638328 is 82383634035.

53043638328 is a `hidden beast` number, since 5 + 3 + 0 + 4 + 3 + 638 + 3 + 2 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 368358528 + ... + 368358671.

It is an arithmetic number, because the mean of its divisors is an integer number (5985827250).

Almost surely, 2^53043638328 is an apocalyptic number.

It is an amenable number.

53043638328 is an abundant number, since it is smaller than the sum of its proper divisors (90616215672).

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

53043638328 is a wasteful number, since it uses less digits than its factorization.

53043638328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 736717211 (or 736717204 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 45.

The spelling of 53043638328 in words is "fifty-three billion, forty-three million, six hundred thirty-eight thousand, three hundred twenty-eight".