404918003109 has 4 divisors (see below), whose sum is σ = 539890670816. Its totient is φ = 269945335404.

The previous prime is 404918003107. The next prime is 404918003129. The reversal of 404918003109 is 901300819404.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 404918003109 - 2¹ = 404918003107 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404918003107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67486333849 + ... + 67486333854.

It is an arithmetic number, because the mean of its divisors is an integer number (134972667704).

Almost surely, 2^404918003109 is an apocalyptic number.

It is an amenable number.

404918003109 is a deficient number, since it is larger than the sum of its proper divisors (134972667707).

404918003109 is a wasteful number, since it uses less digits than its factorization.

404918003109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134972667706.

The product of its (nonzero) digits is 31104, while the sum is 39.

The spelling of 404918003109 in words is "four hundred four billion, nine hundred eighteen million, three thousand, one hundred nine".