52768530816 has 128 divisors (see below), whose sum is σ = 141005689440. Its totient is φ = 17484595200.

The previous prime is 52768530797. The next prime is 52768530847. The reversal of 52768530816 is 61803586725.

It is a happy number.

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

It is a congruent number.

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, 86082126 + ... + 86082738.

Almost surely, 2^52768530816 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 52768530816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70502844720).

52768530816 is an abundant number, since it is smaller than the sum of its proper divisors (88237158624).

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

52768530816 is a wasteful number, since it uses less digits than its factorization.

52768530816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1604 (or 1592 counting only the distinct ones).

The product of its (nonzero) digits is 2419200, while the sum is 51.

The spelling of 52768530816 in words is "fifty-two billion, seven hundred sixty-eight million, five hundred thirty thousand, eight hundred sixteen".