36668685187 has 2 divisors, whose sum is σ = 36668685188. Its totient is φ = 36668685186.

The previous prime is 36668685139. The next prime is 36668685197. The reversal of 36668685187 is 78158686663.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 36668685187 - 2⁷ = 36668685059 is a prime.

It is not a weakly prime, because it can be changed into another prime (36668685127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18334342593 + 18334342594.

It is an arithmetic number, because the mean of its divisors is an integer number (18334342594).

Almost surely, 2^36668685187 is an apocalyptic number.

36668685187 is a deficient number, since it is larger than the sum of its proper divisors (1).

36668685187 is an equidigital number, since it uses as much as digits as its factorization.

36668685187 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 69672960, while the sum is 64.

The spelling of 36668685187 in words is "thirty-six billion, six hundred sixty-eight million, six hundred eighty-five thousand, one hundred eighty-seven".