108742216493 has 2 divisors, whose sum is σ = 108742216494. Its totient is φ = 108742216492.

The previous prime is 108742216481. The next prime is 108742216549. The reversal of 108742216493 is 394612247801.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 108733084009 + 9132484 = 329747^2 + 3022^2 .

It is a cyclic number.

It is not a de Polignac number, because 108742216493 - 2³² = 104447249197 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (108742216993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54371108246 + 54371108247.

It is an arithmetic number, because the mean of its divisors is an integer number (54371108247).

Almost surely, 2^108742216493 is an apocalyptic number.

It is an amenable number.

108742216493 is a deficient number, since it is larger than the sum of its proper divisors (1).

108742216493 is an equidigital number, since it uses as much as digits as its factorization.

108742216493 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 580608, while the sum is 47.

The spelling of 108742216493 in words is "one hundred eight billion, seven hundred forty-two million, two hundred sixteen thousand, four hundred ninety-three".