13285126509 has 8 divisors (see below), whose sum is σ = 17811367392. Its totient is φ = 8807818320.

The previous prime is 13285126471. The next prime is 13285126511. The reversal of 13285126509 is 90562158231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13285126509 - 2⁷ = 13285126381 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13285126529) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12232539 + ... + 12233624.

It is an arithmetic number, because the mean of its divisors is an integer number (2226420924).

Almost surely, 2^13285126509 is an apocalyptic number.

It is an amenable number.

13285126509 is a deficient number, since it is larger than the sum of its proper divisors (4526240883).

13285126509 is a wasteful number, since it uses less digits than its factorization.

13285126509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24466347.

The product of its (nonzero) digits is 129600, while the sum is 42.

The spelling of 13285126509 in words is "thirteen billion, two hundred eighty-five million, one hundred twenty-six thousand, five hundred nine".