13223685909 has 48 divisors (see below), whose sum is σ = 21873499200. Its totient is φ = 7060548096.

The previous prime is 13223685863. The next prime is 13223685913. The reversal of 13223685909 is 90958632231.

It is not a de Polignac number, because 13223685909 - 2¹⁵ = 13223653141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13223685109) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 328327 + ... + 366395.

It is an arithmetic number, because the mean of its divisors is an integer number (455697900).

Almost surely, 2^13223685909 is an apocalyptic number.

It is an amenable number.

13223685909 is a deficient number, since it is larger than the sum of its proper divisors (8649813291).

13223685909 is a wasteful number, since it uses less digits than its factorization.

13223685909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38242 (or 38235 counting only the distinct ones).

The product of its (nonzero) digits is 699840, while the sum is 48.

The spelling of 13223685909 in words is "thirteen billion, two hundred twenty-three million, six hundred eighty-five thousand, nine hundred nine".