52638454368 has 48 divisors (see below), whose sum is σ = 153528827760. Its totient is φ = 17546151168.

The previous prime is 52638454313. The next prime is 52638454397. The reversal of 52638454368 is 86345483625.

52638454368 is a `hidden beast` number, since 5 + 2 + 6 + 38 + 4 + 543 + 68 = 666.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30461205 + ... + 30462932.

It is an arithmetic number, because the mean of its divisors is an integer number (3198517245).

Almost surely, 2^52638454368 is an apocalyptic number.

It is an amenable number.

52638454368 is an abundant number, since it is smaller than the sum of its proper divisors (100890373392).

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

52638454368 is a wasteful number, since it uses less digits than its factorization.

52638454368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60924156 (or 60924142 counting only the distinct ones).

The product of its digits is 16588800, while the sum is 54.

The spelling of 52638454368 in words is "fifty-two billion, six hundred thirty-eight million, four hundred fifty-four thousand, three hundred sixty-eight".