52971000817728 has 112 divisors (see below), whose sum is σ = 160987284653184. Its totient is φ = 15057746350080.

The previous prime is 52971000817723. The next prime is 52971000817783. The reversal of 52971000817728 is 82771800017925.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (112).

It is not an unprimeable number, because it can be changed into a prime (52971000817723) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99768093 + ... + 100297628.

Almost surely, 2^{52971000817728} is an apocalyptic number.

It is an amenable number.

52971000817728 is an abundant number, since it is smaller than the sum of its proper divisors (108016283835456).

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

52971000817728 is a wasteful number, since it uses less digits than its factorization.

52971000817728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200065940 (or 200065930 counting only the distinct ones).

The product of its (nonzero) digits is 3951360, while the sum is 57.

The spelling of 52971000817728 in words is "fifty-two trillion, nine hundred seventy-one billion, eight hundred seventeen thousand, seven hundred twenty-eight".