6613471435609 has 4 divisors (see below), whose sum is σ = 6615215038516. Its totient is φ = 6611727832704.

The previous prime is 6613471435589. The next prime is 6613471435651. The reversal of 6613471435609 is 9065341743166.

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 3768082734025 + 2845388701584 = 1941155^2 + 1686828^2 .

It is a cyclic number.

It is not a de Polignac number, because 6613471435609 - 2⁵ = 6613471435577 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 6613471435609.

It is not an unprimeable number, because it can be changed into a prime (6613471436609) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 871795764 + ... + 871803349.

It is an arithmetic number, because the mean of its divisors is an integer number (1653803759629).

Almost surely, 2^{6613471435609} is an apocalyptic number.

It is an amenable number.

6613471435609 is a deficient number, since it is larger than the sum of its proper divisors (1743602907).

6613471435609 is a wasteful number, since it uses less digits than its factorization.

6613471435609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1743602906.

The product of its (nonzero) digits is 9797760, while the sum is 55.

The spelling of 6613471435609 in words is "six trillion, six hundred thirteen billion, four hundred seventy-one million, four hundred thirty-five thousand, six hundred nine".