53628713568 has 144 divisors (see below), whose sum is σ = 161707356720. Its totient is φ = 16811532288.

The previous prime is 53628713539. The next prime is 53628713603. The reversal of 53628713568 is 86531782635.

53628713568 is a `hidden beast` number, since 5 + 3 + 6 + 2 + 8 + 71 + 3 + 568 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 713896 + ... + 785432.

It is an arithmetic number, because the mean of its divisors is an integer number (1122967755).

Almost surely, 2^53628713568 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 53628713568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80853678360).

53628713568 is an abundant number, since it is smaller than the sum of its proper divisors (108078643152).

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

53628713568 is a wasteful number, since it uses less digits than its factorization.

53628713568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71709 (or 71698 counting only the distinct ones).

The product of its digits is 7257600, while the sum is 54.

The spelling of 53628713568 in words is "fifty-three billion, six hundred twenty-eight million, seven hundred thirteen thousand, five hundred sixty-eight".