406818181608 has 32 divisors (see below), whose sum is σ = 1017063475200. Its totient is φ = 135603657728.

The previous prime is 406818181571. The next prime is 406818181673. The reversal of 406818181608 is 806181818604.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1695385 + ... + 1920407.

It is an arithmetic number, because the mean of its divisors is an integer number (31783233600).

Almost surely, 2^406818181608 is an apocalyptic number.

It is an amenable number.

406818181608 is an abundant number, since it is smaller than the sum of its proper divisors (610245293592).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

406818181608 is a wasteful number, since it uses less digits than its factorization.

406818181608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300361 (or 300357 counting only the distinct ones).

The product of its (nonzero) digits is 589824, while the sum is 51.

The spelling of 406818181608 in words is "four hundred six billion, eight hundred eighteen million, one hundred eighty-one thousand, six hundred eight".