65327318784 has 1296 divisors, whose sum is σ = 263322142720. Its totient is φ = 15109079040.

The previous prime is 65327318773. The next prime is 65327318789. The reversal of 65327318784 is 48781372356.

It is a happy number.

65327318784 is a `hidden beast` number, since 6 + 532 + 7 + 31 + 8 + 78 + 4 = 666.

Its product of digits (6773760) is a multiple of the sum of its prime divisors (98).

It is a self number, because there is not a number n which added to its sum of digits gives 65327318784.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65327318789) 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 143 ways as a sum of consecutive naturals, for example, 2107332849 + ... + 2107332879.

Almost surely, 2^65327318784 is an apocalyptic number.

65327318784 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65327318784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (131661071360).

65327318784 is an abundant number, since it is smaller than the sum of its proper divisors (197994823936).

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

65327318784 is a wasteful number, since it uses less digits than its factorization.

65327318784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138 (or 98 counting only the distinct ones).

The product of its digits is 6773760, while the sum is 54.

The spelling of 65327318784 in words is "sixty-five billion, three hundred twenty-seven million, three hundred eighteen thousand, seven hundred eighty-four".