36644430650 has 12 divisors (see below), whose sum is σ = 68158641102. Its totient is φ = 14657772240.

The previous prime is 36644430601. The next prime is 36644430673. The reversal of 36644430650 is 5603444663.

It can be written as a sum of positive squares in 3 ways, for example, as 22329026041 + 14315404609 = 149429^2 + 119647^2 .

It is a junction number, because it is equal to n+sod(n) for n = 36644430598 and 36644430607.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 366444257 + ... + 366444356.

Almost surely, 2^36644430650 is an apocalyptic number.

36644430650 is a deficient number, since it is larger than the sum of its proper divisors (31514210452).

36644430650 is a wasteful number, since it uses less digits than its factorization.

36644430650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 732888625 (or 732888620 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 41.

The spelling of 36644430650 in words is "thirty-six billion, six hundred forty-four million, four hundred thirty thousand, six hundred fifty".