18735365727907 has 2 divisors, whose sum is σ = 18735365727908. Its totient is φ = 18735365727906.

The previous prime is 18735365727857. The next prime is 18735365727913. The reversal of 18735365727907 is 70972756353781.

It is a strong prime.

It is an emirp because it is prime and its reverse (70972756353781) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 18735365727907 - 2⁷ = 18735365727779 is a prime.

It is not a weakly prime, because it can be changed into another prime (18735365727007) 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, 9367682863953 + 9367682863954.

It is an arithmetic number, because the mean of its divisors is an integer number (9367682863954).

Almost surely, 2^{18735365727907} is an apocalyptic number.

18735365727907 is a deficient number, since it is larger than the sum of its proper divisors (1).

18735365727907 is an equidigital number, since it uses as much as digits as its factorization.

18735365727907 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 466754400, while the sum is 70.

The spelling of 18735365727907 in words is "eighteen trillion, seven hundred thirty-five billion, three hundred sixty-five million, seven hundred twenty-seven thousand, nine hundred seven".