53936984567808 has 234 divisors, whose sum is σ = 161783062152764. Its totient is φ = 17978985897984.

The previous prime is 53936984567789. The next prime is 53936984567863. The reversal of 53936984567808 is 80876548963935.

53936984567808 is a `hidden beast` number, since 5 + 3 + 9 + 3 + 6 + 98 + 456 + 78 + 0 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (81).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 25870335 + ... + 27877377.

Almost surely, 2^{53936984567808} 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 53936984567808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80891531076382).

53936984567808 is an abundant number, since it is smaller than the sum of its proper divisors (107846077584956).

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

53936984567808 is an frugal number, since it uses more digits than its factorization.

53936984567808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2007091 (or 2007048 counting only the distinct ones).

The product of its (nonzero) digits is 9405849600, while the sum is 81.

The spelling of 53936984567808 in words is "fifty-three trillion, nine hundred thirty-six billion, nine hundred eighty-four million, five hundred sixty-seven thousand, eight hundred eight".