18653760539 has 2 divisors, whose sum is σ = 18653760540. Its totient is φ = 18653760538.

The previous prime is 18653760481. The next prime is 18653760557. The reversal of 18653760539 is 93506735681.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18653760539 is a prime.

It is not a weakly prime, because it can be changed into another prime (18653760569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9326880269 + 9326880270.

It is an arithmetic number, because the mean of its divisors is an integer number (9326880270).

Almost surely, 2^18653760539 is an apocalyptic number.

18653760539 is a deficient number, since it is larger than the sum of its proper divisors (1).

18653760539 is an equidigital number, since it uses as much as digits as its factorization.

18653760539 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4082400, while the sum is 53.

The spelling of 18653760539 in words is "eighteen billion, six hundred fifty-three million, seven hundred sixty thousand, five hundred thirty-nine".