18872096387 has 2 divisors, whose sum is σ = 18872096388. Its totient is φ = 18872096386.

The previous prime is 18872096381. The next prime is 18872096417. The reversal of 18872096387 is 78369027881.

It is a weak prime.

It is an emirp because it is prime and its reverse (78369027881) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 18872096387 - 2¹⁸ = 18871834243 is a prime.

It is not a weakly prime, because it can be changed into another prime (18872096381) 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, 9436048193 + 9436048194.

It is an arithmetic number, because the mean of its divisors is an integer number (9436048194).

Almost surely, 2^18872096387 is an apocalyptic number.

18872096387 is a deficient number, since it is larger than the sum of its proper divisors (1).

18872096387 is an equidigital number, since it uses as much as digits as its factorization.

18872096387 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8128512, while the sum is 59.

The spelling of 18872096387 in words is "eighteen billion, eight hundred seventy-two million, ninety-six thousand, three hundred eighty-seven".