6468281389566 has 24 divisors (see below), whose sum is σ = 14018069378664. Its totient is φ = 2155561534800.

The previous prime is 6468281389529. The next prime is 6468281389649. The reversal of 6468281389566 is 6659831828646.

6468281389566 is a `hidden beast` number, since 6 + 4 + 6 + 8 + 28 + 1 + 38 + 9 + 566 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 6468281389494 and 6468281389503.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44280201 + ... + 44426036.

It is an arithmetic number, because the mean of its divisors is an integer number (584086224111).

Almost surely, 2^{6468281389566} is an apocalyptic number.

6468281389566 is an abundant number, since it is smaller than the sum of its proper divisors (7549787989098).

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

6468281389566 is a wasteful number, since it uses less digits than its factorization.

6468281389566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88710296 (or 88710293 counting only the distinct ones).

The product of its digits is 716636160, while the sum is 72.

The spelling of 6468281389566 in words is "six trillion, four hundred sixty-eight billion, two hundred eighty-one million, three hundred eighty-nine thousand, five hundred sixty-six".