405312405105 has 16 divisors (see below), whose sum is σ = 649039843584. Its totient is φ = 215986617600.

The previous prime is 405312405061. The next prime is 405312405137. The reversal of 405312405105 is 501504213504.

It is not a de Polignac number, because 405312405105 - 2²⁵ = 405278850673 is a prime.

It is a super-2 number, since 2×405312405105² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11231289 + ... + 11267318.

It is an arithmetic number, because the mean of its divisors is an integer number (40564990224).

Almost surely, 2^405312405105 is an apocalyptic number.

It is an amenable number.

405312405105 is a deficient number, since it is larger than the sum of its proper divisors (243727438479).

405312405105 is a wasteful number, since it uses less digits than its factorization.

405312405105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22499816.

The product of its (nonzero) digits is 12000, while the sum is 30.

Adding to 405312405105 its reverse (501504213504), we get a palindrome (906816618609).

The spelling of 405312405105 in words is "four hundred five billion, three hundred twelve million, four hundred five thousand, one hundred five".