405509543382 has 8 divisors (see below), whose sum is σ = 811019086776. Its totient is φ = 135169847792.

The previous prime is 405509543359. The next prime is 405509543389. The reversal of 405509543382 is 283345905504.

It is a sphenic number, since it is the product of 3 distinct primes.

405509543382 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (405509543389) 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 3 ways as a sum of consecutive naturals, for example, 33792461943 + ... + 33792461954.

It is an arithmetic number, because the mean of its divisors is an integer number (101377385847).

Almost surely, 2^405509543382 is an apocalyptic number.

405509543382 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

405509543382 is a wasteful number, since it uses less digits than its factorization.

405509543382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67584923902.

The product of its (nonzero) digits is 2592000, while the sum is 48.

The spelling of 405509543382 in words is "four hundred five billion, five hundred nine million, five hundred forty-three thousand, three hundred eighty-two".