36243665634 has 64 divisors (see below), whose sum is σ = 80843692032. Its totient is φ = 10738056000.

The previous prime is 36243665609. The next prime is 36243665639. The reversal of 36243665634 is 43656634263.

It is not an unprimeable number, because it can be changed into a prime (36243665639) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3254644 + ... + 3265760.

It is an arithmetic number, because the mean of its divisors is an integer number (1263182688).

Almost surely, 2^36243665634 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 36243665634, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40421846016).

36243665634 is an abundant number, since it is smaller than the sum of its proper divisors (44600026398).

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

36243665634 is a wasteful number, since it uses less digits than its factorization.

36243665634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12231.

The product of its digits is 5598720, while the sum is 48.

The spelling of 36243665634 in words is "thirty-six billion, two hundred forty-three million, six hundred sixty-five thousand, six hundred thirty-four".