36642505187 has 2 divisors, whose sum is σ = 36642505188. Its totient is φ = 36642505186.

The previous prime is 36642505121. The next prime is 36642505217. The reversal of 36642505187 is 78150524663.

It is a strong prime.

It is an emirp because it is prime and its reverse (78150524663) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 36642505187 - 2¹⁶ = 36642439651 is a prime.

It is not a weakly prime, because it can be changed into another prime (36642505987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18321252593 + 18321252594.

It is an arithmetic number, because the mean of its divisors is an integer number (18321252594).

Almost surely, 2^36642505187 is an apocalyptic number.

36642505187 is a deficient number, since it is larger than the sum of its proper divisors (1).

36642505187 is an equidigital number, since it uses as much as digits as its factorization.

36642505187 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1209600, while the sum is 47.

The spelling of 36642505187 in words is "thirty-six billion, six hundred forty-two million, five hundred five thousand, one hundred eighty-seven".