18872096417 has 2 divisors, whose sum is σ = 18872096418. Its totient is φ = 18872096416.

The previous prime is 18872096387. The next prime is 18872096429. The reversal of 18872096417 is 71469027881.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15243359296 + 3628737121 = 123464^2 + 60239^2 .

It is a cyclic number.

It is not a de Polignac number, because 18872096417 - 2¹² = 18872092321 is a prime.

It is not a weakly prime, because it can be changed into another prime (18872096497) 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, 9436048208 + 9436048209.

It is an arithmetic number, because the mean of its divisors is an integer number (9436048209).

Almost surely, 2^18872096417 is an apocalyptic number.

It is an amenable number.

18872096417 is a deficient number, since it is larger than the sum of its proper divisors (1).

18872096417 is an equidigital number, since it uses as much as digits as its factorization.

18872096417 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1354752, while the sum is 53.

The spelling of 18872096417 in words is "eighteen billion, eight hundred seventy-two million, ninety-six thousand, four hundred seventeen".