53668588428 has 576 divisors, whose sum is σ = 179640115200. Its totient is φ = 13211527680.

The previous prime is 53668588409. The next prime is 53668588453. The reversal of 53668588428 is 82488586635.

53668588428 is a `hidden beast` number, since 5 + 3 + 6 + 6 + 8 + 588 + 42 + 8 = 666.

It is a super-2 number, since 2×53668588428² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 909637063 + ... + 909637121.

It is an arithmetic number, because the mean of its divisors is an integer number (311875200).

Almost surely, 2^53668588428 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 53668588428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89820057600).

53668588428 is an abundant number, since it is smaller than the sum of its proper divisors (125971526772).

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

53668588428 is a wasteful number, since it uses less digits than its factorization.

53668588428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199 (or 168 counting only the distinct ones).

The product of its digits is 88473600, while the sum is 63.

The spelling of 53668588428 in words is "fifty-three billion, six hundred sixty-eight million, five hundred eighty-eight thousand, four hundred twenty-eight".