13234441509 has 12 divisors (see below), whose sum is σ = 19199896300. Its totient is φ = 8784431424.

The previous prime is 13234441489. The next prime is 13234441543. The reversal of 13234441509 is 90514443231.

13234441509 is a `hidden beast` number, since 1 + 3 + 234 + 4 + 415 + 0 + 9 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 8232840225 + 5001601284 = 90735^2 + 70722^2 .

It is not a de Polignac number, because 13234441509 - 2¹⁷ = 13234310437 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13234441589) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3208624 + ... + 3212745.

Almost surely, 2^13234441509 is an apocalyptic number.

It is an amenable number.

13234441509 is a deficient number, since it is larger than the sum of its proper divisors (5965454791).

13234441509 is a wasteful number, since it uses less digits than its factorization.

13234441509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6421604 (or 6421601 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The spelling of 13234441509 in words is "thirteen billion, two hundred thirty-four million, four hundred forty-one thousand, five hundred nine".