406010820905 has 32 divisors (see below), whose sum is σ = 532888657920. Its totient is φ = 295632552960.

The previous prime is 406010820899. The next prime is 406010820913. The reversal of 406010820905 is 509028010604.

It is not a de Polignac number, because 406010820905 - 2²⁸ = 405742385449 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3738227 + ... + 3845303.

It is an arithmetic number, because the mean of its divisors is an integer number (16652770560).

Almost surely, 2^406010820905 is an apocalyptic number.

It is an amenable number.

406010820905 is a deficient number, since it is larger than the sum of its proper divisors (126877837015).

406010820905 is a wasteful number, since it uses less digits than its factorization.

406010820905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108569.

The product of its (nonzero) digits is 17280, while the sum is 35.

The spelling of 406010820905 in words is "four hundred six billion, ten million, eight hundred twenty thousand, nine hundred five".