18830304469 has 2 divisors, whose sum is σ = 18830304470. Its totient is φ = 18830304468.

The previous prime is 18830304463. The next prime is 18830304491. The reversal of 18830304469 is 96440303881.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17607963025 + 1222341444 = 132695^2 + 34962^2 .

It is an emirp because it is prime and its reverse (96440303881) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 18830304469 - 2⁷ = 18830304341 is a prime.

It is a super-2 number, since 2×18830304469² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18830304463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9415152234 + 9415152235.

It is an arithmetic number, because the mean of its divisors is an integer number (9415152235).

Almost surely, 2^18830304469 is an apocalyptic number.

It is an amenable number.

18830304469 is a deficient number, since it is larger than the sum of its proper divisors (1).

18830304469 is an equidigital number, since it uses as much as digits as its factorization.

18830304469 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 497664, while the sum is 46.

The spelling of 18830304469 in words is "eighteen billion, eight hundred thirty million, three hundred four thousand, four hundred sixty-nine".