53991684914688 has 480 divisors, whose sum is σ = 163684892067840. Its totient is φ = 17112583618560.

The previous prime is 53991684914681. The next prime is 53991684914743. The reversal of 53991684914688 is 88641948619935.

53991684914688 is a `hidden beast` number, since 5 + 3 + 9 + 9 + 1 + 6 + 8 + 491 + 46 + 88 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53991684914681) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5761566643 + ... + 5761576013.

It is an arithmetic number, because the mean of its divisors is an integer number (341010191808).

Almost surely, 2^{53991684914688} 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 53991684914688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81842446033920).

53991684914688 is an abundant number, since it is smaller than the sum of its proper divisors (109693207153152).

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

53991684914688 is a wasteful number, since it uses less digits than its factorization.

53991684914688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10198 (or 10179 counting only the distinct ones).

The product of its digits is 3224862720, while the sum is 81.

The spelling of 53991684914688 in words is "fifty-three trillion, nine hundred ninety-one billion, six hundred eighty-four million, nine hundred fourteen thousand, six hundred eighty-eight".