13135535812 has 24 divisors (see below), whose sum is σ = 26375751360. Its totient is φ = 5607084000.

The previous prime is 13135535807. The next prime is 13135535813. The reversal of 13135535812 is 21853553131.

13135535812 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (13135535813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 927487 + ... + 941542.

It is an arithmetic number, because the mean of its divisors is an integer number (1098989640).

Almost surely, 2^13135535812 is an apocalyptic number.

It is an amenable number.

13135535812 is an abundant number, since it is smaller than the sum of its proper divisors (13240215548).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13135535812 is a wasteful number, since it uses less digits than its factorization.

13135535812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1869291 (or 1869289 counting only the distinct ones).

The product of its digits is 54000, while the sum is 37.

The spelling of 13135535812 in words is "thirteen billion, one hundred thirty-five million, five hundred thirty-five thousand, eight hundred twelve".