6418130805 has 24 divisors (see below), whose sum is σ = 11154614328. Its totient is φ = 3413817216.

The previous prime is 6418130773. The next prime is 6418130813. The reversal of 6418130805 is 5080318146.

6418130805 is a `hidden beast` number, since 641 + 8 + 1 + 3 + 0 + 8 + 0 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1720673361 + 4697457444 = 41481^2 + 68538^2 .

It is not a de Polignac number, because 6418130805 - 2⁵ = 6418130773 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 6418130805.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 174402 + ... + 207971.

It is an arithmetic number, because the mean of its divisors is an integer number (464775597).

Almost surely, 2^6418130805 is an apocalyptic number.

It is an amenable number.

6418130805 is a deficient number, since it is larger than the sum of its proper divisors (4736483523).

6418130805 is a wasteful number, since it uses less digits than its factorization.

6418130805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382757 (or 382754 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 6418130805 is about 80113.2373893354. The cubic root of 6418130805 is about 1858.3871250603.

The spelling of 6418130805 in words is "six billion, four hundred eighteen million, one hundred thirty thousand, eight hundred five".