13135402609 has 24 divisors (see below), whose sum is σ = 15653188608. Its totient is φ = 10986827040.

The previous prime is 13135402607. The next prime is 13135402627. The reversal of 13135402609 is 90620453131.

It is not a de Polignac number, because 13135402609 - 2¹ = 13135402607 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13135402607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 362302 + ... + 396904.

It is an arithmetic number, because the mean of its divisors is an integer number (652216192).

Almost surely, 2^13135402609 is an apocalyptic number.

It is an amenable number.

13135402609 is a deficient number, since it is larger than the sum of its proper divisors (2517785999).

13135402609 is a wasteful number, since it uses less digits than its factorization.

13135402609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34805 (or 34798 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 34.

The spelling of 13135402609 in words is "thirteen billion, one hundred thirty-five million, four hundred two thousand, six hundred nine".