4181405809 has 8 divisors (see below), whose sum is σ = 4781120960. Its totient is φ = 3582283536.

The previous prime is 4181405801. The next prime is 4181405821. The reversal of 4181405809 is 9085041814.

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

It is a cyclic number.

It is not a de Polignac number, because 4181405809 - 2³ = 4181405801 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4181405801) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 132999 + ... + 161404.

It is an arithmetic number, because the mean of its divisors is an integer number (597640120).

Almost surely, 2^4181405809 is an apocalyptic number.

It is an amenable number.

4181405809 is a deficient number, since it is larger than the sum of its proper divisors (599715151).

4181405809 is a wasteful number, since it uses less digits than its factorization.

4181405809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296439.

The product of its (nonzero) digits is 46080, while the sum is 40.

The square root of 4181405809 is about 64663.7905554569. The cubic root of 4181405809 is about 1611.0441395090.

The spelling of 4181405809 in words is "four billion, one hundred eighty-one million, four hundred five thousand, eight hundred nine".