18616202794297 has 2 divisors, whose sum is σ = 18616202794298. Its totient is φ = 18616202794296.

The previous prime is 18616202794199. The next prime is 18616202794333. The reversal of 18616202794297 is 79249720261681.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13674989516841 + 4941213277456 = 3697971^2 + 2222884^2 .

It is an emirp because it is prime and its reverse (79249720261681) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 18616202794297 - 2¹⁹ = 18616202270009 is a prime.

It is not a weakly prime, because it can be changed into another prime (18616200794297) 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, 9308101397148 + 9308101397149.

It is an arithmetic number, because the mean of its divisors is an integer number (9308101397149).

Almost surely, 2^{18616202794297} is an apocalyptic number.

It is an amenable number.

18616202794297 is a deficient number, since it is larger than the sum of its proper divisors (1).

18616202794297 is an equidigital number, since it uses as much as digits as its factorization.

18616202794297 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36578304, while the sum is 64.

The spelling of 18616202794297 in words is "eighteen trillion, six hundred sixteen billion, two hundred two million, seven hundred ninety-four thousand, two hundred ninety-seven".