327869216640 has 1024 divisors, whose sum is σ = 1404407808000. Its totient is φ = 70618521600.

The previous prime is 327869216639. The next prime is 327869216669. The reversal of 327869216640 is 46612968723.

327869216640 is a `hidden beast` number, since 327 + 8 + 69 + 216 + 6 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

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 127 ways as a sum of consecutive naturals, for example, 760717225 + ... + 760717655.

It is an arithmetic number, because the mean of its divisors is an integer number (1371492000).

Almost surely, 2^327869216640 is an apocalyptic number.

327869216640 is a gapful number since it is divisible by the number (30) 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 327869216640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (702203904000).

327869216640 is an abundant number, since it is smaller than the sum of its proper divisors (1076538591360).

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

327869216640 is a wasteful number, since it uses less digits than its factorization.

327869216640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 816 (or 798 counting only the distinct ones).

The product of its (nonzero) digits is 5225472, while the sum is 54.

The spelling of 327869216640 in words is "three hundred twenty-seven billion, eight hundred sixty-nine million, two hundred sixteen thousand, six hundred forty".