405406504012033 has 4 divisors (see below), whose sum is σ = 407646318951508. Its totient is φ = 403166689072560.

The previous prime is 405406504012001. The next prime is 405406504012121. The reversal of 405406504012033 is 330210405604504.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 104214227680369 + 301192276331664 = 10208537^2 + 17354892^2 .

It is a cyclic number.

It is not a de Polignac number, because 405406504012033 - 2⁵ = 405406504012001 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 405406504011983 and 405406504012001.

It is not an unprimeable number, because it can be changed into a prime (405406534012033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1119907469466 + ... + 1119907469827.

It is an arithmetic number, because the mean of its divisors is an integer number (101911579737877).

Almost surely, 2^{405406504012033} is an apocalyptic number.

It is an amenable number.

405406504012033 is a deficient number, since it is larger than the sum of its proper divisors (2239814939475).

405406504012033 is a wasteful number, since it uses less digits than its factorization.

405406504012033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2239814939474.

The product of its (nonzero) digits is 172800, while the sum is 37.

Adding to 405406504012033 its reverse (330210405604504), we get a palindrome (735616909616537).

The spelling of 405406504012033 in words is "four hundred five trillion, four hundred six billion, five hundred four million, twelve thousand, thirty-three".