405443601768 has 16 divisors (see below), whose sum is σ = 1013609004480. Its totient is φ = 135147867248.

The previous prime is 405443601749. The next prime is 405443601781. The reversal of 405443601768 is 867106344504.

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, 8446741680 + ... + 8446741727.

It is an arithmetic number, because the mean of its divisors is an integer number (63350562780).

Almost surely, 2^405443601768 is an apocalyptic number.

It is an amenable number.

405443601768 is an abundant number, since it is smaller than the sum of its proper divisors (608165402712).

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

405443601768 is a wasteful number, since it uses less digits than its factorization.

405443601768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16893483416 (or 16893483412 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 48.

The spelling of 405443601768 in words is "four hundred five billion, four hundred forty-three million, six hundred one thousand, seven hundred sixty-eight".