52738056864 has 144 divisors (see below), whose sum is σ = 151412133600. Its totient is φ = 17411578368.

The previous prime is 52738056823. The next prime is 52738056883. The reversal of 52738056864 is 46865083725.

52738056864 is a `hidden beast` number, since 5 + 2 + 73 + 8 + 0 + 568 + 6 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a self number, because there is not a number n which added to its sum of digits gives 52738056864.

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 23 ways as a sum of consecutive naturals, for example, 13865587 + ... + 13869389.

It is an arithmetic number, because the mean of its divisors is an integer number (1051473150).

Almost surely, 2^52738056864 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 52738056864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75706066800).

52738056864 is an abundant number, since it is smaller than the sum of its proper divisors (98674076736).

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

52738056864 is a wasteful number, since it uses less digits than its factorization.

52738056864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4267 (or 4256 counting only the distinct ones).

The product of its (nonzero) digits is 9676800, while the sum is 54.

The spelling of 52738056864 in words is "fifty-two billion, seven hundred thirty-eight million, fifty-six thousand, eight hundred sixty-four".