135634643305 has 24 divisors (see below), whose sum is σ = 189943790400. Its totient is φ = 92707503840.

The previous prime is 135634643279. The next prime is 135634643329. The reversal of 135634643305 is 503346436531.

It is not a de Polignac number, because 135634643305 - 2²⁵ = 135601088873 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 813855 + ... + 966244.

It is an arithmetic number, because the mean of its divisors is an integer number (7914324600).

Almost surely, 2^135634643305 is an apocalyptic number.

It is an amenable number.

135634643305 is a deficient number, since it is larger than the sum of its proper divisors (54309147095).

135634643305 is a wasteful number, since it uses less digits than its factorization.

135634643305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1780429 (or 1780422 counting only the distinct ones).

The product of its (nonzero) digits is 1166400, while the sum is 43.

The spelling of 135634643305 in words is "one hundred thirty-five billion, six hundred thirty-four million, six hundred forty-three thousand, three hundred five".