8405663382 has 20 divisors (see below), whose sum is σ = 18834912756. Its totient is φ = 2801887740.

The previous prime is 8405663353. The next prime is 8405663393. The reversal of 8405663382 is 2833665048.

It is a happy number.

8405663382 is a `hidden beast` number, since 8 + 4 + 0 + 5 + 6 + 633 + 8 + 2 = 666.

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 9 ways as a sum of consecutive naturals, for example, 25943244 + ... + 25943567.

Almost surely, 2^8405663382 is an apocalyptic number.

8405663382 is an abundant number, since it is smaller than the sum of its proper divisors (10429249374).

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

8405663382 is a wasteful number, since it uses less digits than its factorization.

8405663382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51886825 (or 51886816 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 45.

The square root of 8405663382 is about 91682.4049750005. The cubic root of 8405663382 is about 2033.2494555086.

The spelling of 8405663382 in words is "eight billion, four hundred five million, six hundred sixty-three thousand, three hundred eighty-two".