52745388864 has 112 divisors (see below), whose sum is σ = 159556557696. Its totient is φ = 15064012800.

The previous prime is 52745388863. The next prime is 52745388869. The reversal of 52745388864 is 46888354725.

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

It is a junction number, because it is equal to n+sod(n) for n = 52745388798 and 52745388807.

It is a congruent number.

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

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 15 ways as a sum of consecutive naturals, for example, 4107574 + ... + 4120394.

Almost surely, 2^52745388864 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 52745388864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79778278848).

52745388864 is an abundant number, since it is smaller than the sum of its proper divisors (106811168832).

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

52745388864 is a wasteful number, since it uses less digits than its factorization.

52745388864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15904 (or 15894 counting only the distinct ones).

The product of its digits is 51609600, while the sum is 60.

The spelling of 52745388864 in words is "fifty-two billion, seven hundred forty-five million, three hundred eighty-eight thousand, eight hundred sixty-four".