505404343354412 has 12 divisors (see below), whose sum is σ = 884458427949096. Its totient is φ = 252701935368960.

The previous prime is 505404343354403. The next prime is 505404343354459. The reversal of 505404343354412 is 214453343404505.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54220514 + ... + 62854377.

It is an arithmetic number, because the mean of its divisors is an integer number (73704868995758).

Almost surely, 2^{505404343354412} is an apocalyptic number.

It is an amenable number.

505404343354412 is a deficient number, since it is larger than the sum of its proper divisors (379054084594684).

505404343354412 is a wasteful number, since it uses less digits than its factorization.

505404343354412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118154128 (or 118154126 counting only the distinct ones).

The product of its (nonzero) digits is 6912000, while the sum is 47.

Adding to 505404343354412 its reverse (214453343404505), we get a palindrome (719857686758917).

The spelling of 505404343354412 in words is "five hundred five trillion, four hundred four billion, three hundred forty-three million, three hundred fifty-four thousand, four hundred twelve".