469618189 has 2 divisors, whose sum is σ = 469618190. Its totient is φ = 469618188.

The previous prime is 469618181. The next prime is 469618241. The reversal of 469618189 is 981816964.

It is an a-pointer prime, because the next prime (469618241) can be obtained adding 469618189 to its sum of digits (52).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 297562500 + 172055689 = 17250^2 + 13117^2 .

It is a cyclic number.

It is not a de Polignac number, because 469618189 - 2³ = 469618181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (469618181) 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, 234809094 + 234809095.

It is an arithmetic number, because the mean of its divisors is an integer number (234809095).

Almost surely, 2^469618189 is an apocalyptic number.

It is an amenable number.

469618189 is a deficient number, since it is larger than the sum of its proper divisors (1).

469618189 is an equidigital number, since it uses as much as digits as its factorization.

469618189 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 746496, while the sum is 52.

The square root of 469618189 is about 21670.6757854941. The cubic root of 469618189 is about 777.2874156107.

The spelling of 469618189 in words is "four hundred sixty-nine million, six hundred eighteen thousand, one hundred eighty-nine".