18803234927 has 2 divisors, whose sum is σ = 18803234928. Its totient is φ = 18803234926.

The previous prime is 18803234911. The next prime is 18803234969. The reversal of 18803234927 is 72943230881.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18803234927 - 2⁴ = 18803234911 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18803234027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9401617463 + 9401617464.

It is an arithmetic number, because the mean of its divisors is an integer number (9401617464).

Almost surely, 2^18803234927 is an apocalyptic number.

18803234927 is a deficient number, since it is larger than the sum of its proper divisors (1).

18803234927 is an equidigital number, since it uses as much as digits as its factorization.

18803234927 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 580608, while the sum is 47.

The spelling of 18803234927 in words is "eighteen billion, eight hundred three million, two hundred thirty-four thousand, nine hundred twenty-seven".