18382354537 has 2 divisors, whose sum is σ = 18382354538. Its totient is φ = 18382354536.

The previous prime is 18382354519. The next prime is 18382354553. The reversal of 18382354537 is 73545328381.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11175872656 + 7206481881 = 105716^2 + 84891^2 .

It is a cyclic number.

It is not a de Polignac number, because 18382354537 - 2¹⁹ = 18381830249 is a prime.

It is not a weakly prime, because it can be changed into another prime (18382354637) 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, 9191177268 + 9191177269.

It is an arithmetic number, because the mean of its divisors is an integer number (9191177269).

Almost surely, 2^18382354537 is an apocalyptic number.

It is an amenable number.

18382354537 is a deficient number, since it is larger than the sum of its proper divisors (1).

18382354537 is an equidigital number, since it uses as much as digits as its factorization.

18382354537 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2419200, while the sum is 49.

The spelling of 18382354537 in words is "eighteen billion, three hundred eighty-two million, three hundred fifty-four thousand, five hundred thirty-seven".