136252643634 has 24 divisors (see below), whose sum is σ = 303192821100. Its totient is φ = 44190046368.

The previous prime is 136252643623. The next prime is 136252643663. The reversal of 136252643634 is 436346252631.

136252643634 is a `hidden beast` number, since 1 + 3 + 6 + 2 + 5 + 2 + 6 + 4 + 3 + 634 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 135818046225 + 434597409 = 368535^2 + 20847^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 136252643634.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 102291109 + ... + 102292440.

Almost surely, 2^136252643634 is an apocalyptic number.

136252643634 is an abundant number, since it is smaller than the sum of its proper divisors (166940177466).

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

136252643634 is a wasteful number, since it uses less digits than its factorization.

136252643634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204583594 (or 204583591 counting only the distinct ones).

The product of its digits is 1866240, while the sum is 45.

The spelling of 136252643634 in words is "one hundred thirty-six billion, two hundred fifty-two million, six hundred forty-three thousand, six hundred thirty-four".