135673087812 has 12 divisors (see below), whose sum is σ = 316570538256. Its totient is φ = 45224362600.

The previous prime is 135673087801. The next prime is 135673087817. The reversal of 135673087812 is 218780376531.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (135673087817) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5653045314 + ... + 5653045337.

It is an arithmetic number, because the mean of its divisors is an integer number (26380878188).

Almost surely, 2^135673087812 is an apocalyptic number.

135673087812 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

135673087812 is an abundant number, since it is smaller than the sum of its proper divisors (180897450444).

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

135673087812 is a wasteful number, since it uses less digits than its factorization.

135673087812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11306090658 (or 11306090656 counting only the distinct ones).

The product of its (nonzero) digits is 1693440, while the sum is 51.

The spelling of 135673087812 in words is "one hundred thirty-five billion, six hundred seventy-three million, eighty-seven thousand, eight hundred twelve".