36481889209 has 2 divisors, whose sum is σ = 36481889210. Its totient is φ = 36481889208.

The previous prime is 36481889207. The next prime is 36481889221. The reversal of 36481889209 is 90298818463.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18464733225 + 18017155984 = 135885^2 + 134228^2 .

It is a cyclic number.

It is not a de Polignac number, because 36481889209 - 2¹ = 36481889207 is a prime.

Together with 36481889207, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (36481889207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18240944604 + 18240944605.

It is an arithmetic number, because the mean of its divisors is an integer number (18240944605).

Almost surely, 2^36481889209 is an apocalyptic number.

It is an amenable number.

36481889209 is a deficient number, since it is larger than the sum of its proper divisors (1).

36481889209 is an equidigital number, since it uses as much as digits as its factorization.

36481889209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5971968, while the sum is 58.

The spelling of 36481889209 in words is "thirty-six billion, four hundred eighty-one million, eight hundred eighty-nine thousand, two hundred nine".