13069215609 has 4 divisors (see below), whose sum is σ = 17425620816. Its totient is φ = 8712810404.

The previous prime is 13069215587. The next prime is 13069215689. The reversal of 13069215609 is 90651296031.

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 a cyclic number.

It is not a de Polignac number, because 13069215609 - 2⁸ = 13069215353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13069215689) 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, 2178202599 + ... + 2178202604.

It is an arithmetic number, because the mean of its divisors is an integer number (4356405204).

Almost surely, 2^13069215609 is an apocalyptic number.

It is an amenable number.

13069215609 is a deficient number, since it is larger than the sum of its proper divisors (4356405207).

13069215609 is an equidigital number, since it uses as much as digits as its factorization.

13069215609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4356405206.

The product of its (nonzero) digits is 87480, while the sum is 42.

The spelling of 13069215609 in words is "thirteen billion, sixty-nine million, two hundred fifteen thousand, six hundred nine".