135808640344 has 64 divisors (see below), whose sum is σ = 292970764800. Its totient is φ = 58495561344.

The previous prime is 135808640257. The next prime is 135808640351. The reversal of 135808640344 is 443046808531.

It is a junction number, because it is equal to n+sod(n) for n = 135808640294 and 135808640303.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 380512 + ... + 645295.

It is an arithmetic number, because the mean of its divisors is an integer number (4577668200).

Almost surely, 2^135808640344 is an apocalyptic number.

It is an amenable number.

135808640344 is an abundant number, since it is smaller than the sum of its proper divisors (157162124456).

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

135808640344 is a wasteful number, since it uses less digits than its factorization.

135808640344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1025912 (or 1025908 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 46.

The spelling of 135808640344 in words is "one hundred thirty-five billion, eight hundred eight million, six hundred forty thousand, three hundred forty-four".