52845538620680 has 128 divisors (see below), whose sum is σ = 128894032965600. Its totient is φ = 19383586332672.

The previous prime is 52845538620649. The next prime is 52845538620767. The reversal of 52845538620680 is 8602683554825.

It can be written as a sum of positive squares in 16 ways, for example, as 7422279076996 + 45423259543684 = 2724386^2 + 6739678^2 .

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 110321852 + ... + 110799828.

Almost surely, 2^{52845538620680} 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 52845538620680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64447016482800).

52845538620680 is an abundant number, since it is smaller than the sum of its proper divisors (76048494344920).

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

52845538620680 is a wasteful number, since it uses less digits than its factorization.

52845538620680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 479403 (or 479399 counting only the distinct ones).

The product of its (nonzero) digits is 110592000, while the sum is 62.

The spelling of 52845538620680 in words is "fifty-two trillion, eight hundred forty-five billion, five hundred thirty-eight million, six hundred twenty thousand, six hundred eighty".