135867818180 has 24 divisors (see below), whose sum is σ = 287569056768. Its totient is φ = 53919196128.

The previous prime is 135867818179. The next prime is 135867818227. The reversal of 135867818180 is 81818768531.

It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

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, 26743094 + ... + 26748173.

It is an arithmetic number, because the mean of its divisors is an integer number (11982044032).

Almost surely, 2^135867818180 is an apocalyptic number.

135867818180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

135867818180 is an abundant number, since it is smaller than the sum of its proper divisors (151701238588).

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

135867818180 is a wasteful number, since it uses less digits than its factorization.

135867818180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53491403 (or 53491401 counting only the distinct ones).

The product of its (nonzero) digits is 2580480, while the sum is 56.

The spelling of 135867818180 in words is "one hundred thirty-five billion, eight hundred sixty-seven million, eight hundred eighteen thousand, one hundred eighty".