53766448884 has 18 divisors (see below), whose sum is σ = 135909634770. Its totient is φ = 17922149616.

The previous prime is 53766448829. The next prime is 53766448889. The reversal of 53766448884 is 48884466735.

53766448884 is a `hidden beast` number, since 5 + 3 + 76 + 6 + 4 + 488 + 84 = 666.

It can be written as a sum of positive squares in only one way, i.e., 27151789284 + 26614659600 = 164778^2 + 163140^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53766448889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 746756199 + ... + 746756270.

It is an arithmetic number, because the mean of its divisors is an integer number (7550535265).

Almost surely, 2^53766448884 is an apocalyptic number.

It is an amenable number.

53766448884 is an abundant number, since it is smaller than the sum of its proper divisors (82143185886).

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

53766448884 is a wasteful number, since it uses less digits than its factorization.

53766448884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1493512479 (or 1493512474 counting only the distinct ones).

The product of its digits is 123863040, while the sum is 63.

The spelling of 53766448884 in words is "fifty-three billion, seven hundred sixty-six million, four hundred forty-eight thousand, eight hundred eighty-four".