52878518328 has 128 divisors (see below), whose sum is σ = 143142048000. Its totient is φ = 16221358080.

The previous prime is 52878518327. The next prime is 52878518351. The reversal of 52878518328 is 82381587825.

It is a super-2 number, since 2×52878518328² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52878518321) 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 31 ways as a sum of consecutive naturals, for example, 12466288 + ... + 12470528.

It is an arithmetic number, because the mean of its divisors is an integer number (1118297250).

Almost surely, 2^52878518328 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 52878518328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71571024000).

52878518328 is an abundant number, since it is smaller than the sum of its proper divisors (90263529672).

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

52878518328 is a wasteful number, since it uses less digits than its factorization.

52878518328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5045 (or 5041 counting only the distinct ones).

The product of its digits is 8601600, while the sum is 57.

The spelling of 52878518328 in words is "fifty-two billion, eight hundred seventy-eight million, five hundred eighteen thousand, three hundred twenty-eight".