18673608786097 has 2 divisors, whose sum is σ = 18673608786098. Its totient is φ = 18673608786096.

The previous prime is 18673608786047. The next prime is 18673608786191. The reversal of 18673608786097 is 79068780637681.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18449421687841 + 224187098256 = 4295279^2 + 473484^2 .

It is a cyclic number.

It is not a de Polignac number, because 18673608786097 - 2²³ = 18673600397489 is a prime.

It is not a weakly prime, because it can be changed into another prime (18673608786037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9336804393048 + 9336804393049.

It is an arithmetic number, because the mean of its divisors is an integer number (9336804393049).

Almost surely, 2^{18673608786097} is an apocalyptic number.

It is an amenable number.

18673608786097 is a deficient number, since it is larger than the sum of its proper divisors (1).

18673608786097 is an equidigital number, since it uses as much as digits as its factorization.

18673608786097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1024192512, while the sum is 76.

The spelling of 18673608786097 in words is "eighteen trillion, six hundred seventy-three billion, six hundred eight million, seven hundred eighty-six thousand, ninety-seven".