405591541856 has 24 divisors (see below), whose sum is σ = 798806801520. Its totient is φ = 202719973248.

The previous prime is 405591541841. The next prime is 405591541879. The reversal of 405591541856 is 658145195504.

It is a junction number, because it is equal to n+sod(n) for n = 405591541798 and 405591541807.

It is a congruent number.

It is an unprimeable number.

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, 2281676 + ... + 2453003.

It is an arithmetic number, because the mean of its divisors is an integer number (33283616730).

Almost surely, 2^405591541856 is an apocalyptic number.

It is an amenable number.

405591541856 is a deficient number, since it is larger than the sum of its proper divisors (393215259664).

405591541856 is a wasteful number, since it uses less digits than its factorization.

405591541856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4737366 (or 4737358 counting only the distinct ones).

The product of its (nonzero) digits is 4320000, while the sum is 53.

The spelling of 405591541856 in words is "four hundred five billion, five hundred ninety-one million, five hundred forty-one thousand, eight hundred fifty-six".