13434047003581 has 4 divisors (see below), whose sum is σ = 13434060024700. Its totient is φ = 13434033982464.

The previous prime is 13434047003557. The next prime is 13434047003591. The reversal of 13434047003581 is 18530074043431.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4574101851225 + 8859945152356 = 2138715^2 + 2976566^2 .

It is a cyclic number.

It is not a de Polignac number, because 13434047003581 - 2²⁵ = 13434013449149 is a prime.

It is a super-2 number, since 2×13434047003581² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13434047003591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4815966 + ... + 7075423.

It is an arithmetic number, because the mean of its divisors is an integer number (3358515006175).

Almost surely, 2^{13434047003581} is an apocalyptic number.

It is an amenable number.

13434047003581 is a deficient number, since it is larger than the sum of its proper divisors (13021119).

13434047003581 is a wasteful number, since it uses less digits than its factorization.

13434047003581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13021118.

The product of its (nonzero) digits is 483840, while the sum is 43.

The spelling of 13434047003581 in words is "thirteen trillion, four hundred thirty-four billion, forty-seven million, three thousand, five hundred eighty-one".