18822737503697 has 2 divisors, whose sum is σ = 18822737503698. Its totient is φ = 18822737503696.

The previous prime is 18822737503681. The next prime is 18822737503699. The reversal of 18822737503697 is 79630573722881.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12439277548096 + 6383459955601 = 3526936^2 + 2526551^2 .

It is a cyclic number.

It is not a de Polignac number, because 18822737503697 - 2⁴ = 18822737503681 is a prime.

Together with 18822737503699, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (18822737503699) 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, 9411368751848 + 9411368751849.

It is an arithmetic number, because the mean of its divisors is an integer number (9411368751849).

Almost surely, 2^{18822737503697} is an apocalyptic number.

It is an amenable number.

18822737503697 is a deficient number, since it is larger than the sum of its proper divisors (1).

18822737503697 is an equidigital number, since it uses as much as digits as its factorization.

18822737503697 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 213373440, while the sum is 68.

The spelling of 18822737503697 in words is "eighteen trillion, eight hundred twenty-two billion, seven hundred thirty-seven million, five hundred three thousand, six hundred ninety-seven".