135705443536 has 20 divisors (see below), whose sum is σ = 283154627812. Its totient is φ = 62633281536.

The previous prime is 135705443519. The next prime is 135705443539. The reversal of 135705443536 is 635344507531.

It can be written as a sum of positive squares in 2 ways, for example, as 19028547136 + 116676896400 = 137944^2 + 341580^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135705443539) 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, 326214801 + ... + 326215216.

Almost surely, 2^135705443536 is an apocalyptic number.

135705443536 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

135705443536 is an abundant number, since it is smaller than the sum of its proper divisors (147449184276).

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

135705443536 is a wasteful number, since it uses less digits than its factorization.

135705443536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 652430038 (or 652430032 counting only the distinct ones).

The product of its (nonzero) digits is 2268000, while the sum is 46.

The spelling of 135705443536 in words is "one hundred thirty-five billion, seven hundred five million, four hundred forty-three thousand, five hundred thirty-six".