405105050506009 has 8 divisors (see below), whose sum is σ = 478941931632960. Its totient is φ = 335259352142736.

The previous prime is 405105050505989. The next prime is 405105050506061. The reversal of 405105050506009 is 900605050501504.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 405105050506009 - 2¹⁹ = 405105049981721 is a prime.

It is a super-2 number, since 2×405105050506009² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (405105050506609) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 997795690699 + ... + 997795691104.

It is an arithmetic number, because the mean of its divisors is an integer number (59867741454120).

Almost surely, 2^{405105050506009} is an apocalyptic number.

It is an amenable number.

405105050506009 is a deficient number, since it is larger than the sum of its proper divisors (73836881126951).

405105050506009 is a wasteful number, since it uses less digits than its factorization.

405105050506009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1995591381839.

The product of its (nonzero) digits is 135000, while the sum is 40.

The spelling of 405105050506009 in words is "four hundred five trillion, one hundred five billion, fifty million, five hundred six thousand, nine".