13473444418085 has 8 divisors (see below), whose sum is σ = 17119199966616. Its totient is φ = 10144711091200.

The previous prime is 13473444418081. The next prime is 13473444418103. The reversal of 13473444418085 is 58081444437431.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 5722515583684 + 7750928834401 = 2392178^2 + 2784049^2 .

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

It is not a de Polignac number, because 13473444418085 - 2² = 13473444418081 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13473444418085.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13473444418081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79255555316 + ... + 79255555485.

It is an arithmetic number, because the mean of its divisors is an integer number (2139899995827).

Almost surely, 2^{13473444418085} is an apocalyptic number.

It is an amenable number.

13473444418085 is a deficient number, since it is larger than the sum of its proper divisors (3645755548531).

13473444418085 is a wasteful number, since it uses less digits than its factorization.

13473444418085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158511110823.

The product of its (nonzero) digits is 20643840, while the sum is 56.

The spelling of 13473444418085 in words is "thirteen trillion, four hundred seventy-three billion, four hundred forty-four million, four hundred eighteen thousand, eighty-five".