52745388865 has 8 divisors (see below), whose sum is σ = 68163271848. Its totient is φ = 38950440960.

The previous prime is 52745388863. The next prime is 52745388869. The reversal of 52745388865 is 56888354725.

52745388865 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 320875569 + 52424513296 = 17913^2 + 228964^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 52745388865 - 2¹ = 52745388863 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52745388863) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 405733696 + ... + 405733825.

It is an arithmetic number, because the mean of its divisors is an integer number (8520408981).

Almost surely, 2^52745388865 is an apocalyptic number.

It is an amenable number.

52745388865 is a deficient number, since it is larger than the sum of its proper divisors (15417882983).

52745388865 is a wasteful number, since it uses less digits than its factorization.

52745388865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 811467539.

The product of its digits is 64512000, while the sum is 61.

The spelling of 52745388865 in words is "fifty-two billion, seven hundred forty-five million, three hundred eighty-eight thousand, eight hundred sixty-five".