104404404013 has 16 divisors (see below), whose sum is σ = 131970643840. Its totient is φ = 80373093696.

The previous prime is 104404404007. The next prime is 104404404017. The reversal of 104404404013 is 310404404401.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-104404404013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104404404017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15500703 + ... + 15507436.

It is an arithmetic number, because the mean of its divisors is an integer number (8248165240).

Almost surely, 2^104404404013 is an apocalyptic number.

104404404013 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

104404404013 is a deficient number, since it is larger than the sum of its proper divisors (27566239827).

104404404013 is a wasteful number, since it uses less digits than its factorization.

104404404013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31008196.

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 104404404013 its reverse (310404404401), we get a palindrome (414808808414).

The spelling of 104404404013 in words is "one hundred four billion, four hundred four million, four hundred four thousand, thirteen".