18730940027 has 2 divisors, whose sum is σ = 18730940028. Its totient is φ = 18730940026.

The previous prime is 18730940021. The next prime is 18730940071. The reversal of 18730940027 is 72004903781.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18730940027 - 2⁸ = 18730939771 is a prime.

It is a super-2 number, since 2×18730940027² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (18730940021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9365470013 + 9365470014.

It is an arithmetic number, because the mean of its divisors is an integer number (9365470014).

Almost surely, 2^18730940027 is an apocalyptic number.

18730940027 is a deficient number, since it is larger than the sum of its proper divisors (1).

18730940027 is an equidigital number, since it uses as much as digits as its factorization.

18730940027 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84672, while the sum is 41.

The spelling of 18730940027 in words is "eighteen billion, seven hundred thirty million, nine hundred forty thousand, twenty-seven".