389198804164 has 27 divisors (see below), whose sum is σ = 690717472263. Its totient is φ = 191888739072.

The previous prime is 389198804161. The next prime is 389198804167. The reversal of 389198804164 is 461408891983.

The square root of 389198804164 is 623858.

It is a perfect power (a square), and thus also a powerful number.

It is an interprime number because it is at equal distance from previous prime (389198804161) and next prime (389198804167).

It can be written as a sum of positive squares in 4 ways, for example, as 11121389764 + 378077414400 = 105458^2 + 614880^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (389198804161) 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 in 8 ways as a sum of consecutive naturals, for example, 91081132 + ... + 91085404.

Almost surely, 2^389198804164 is an apocalyptic number.

389198804164 is the 623858-th square number.

It is an amenable number.

389198804164 is a deficient number, since it is larger than the sum of its proper divisors (301518668099).

389198804164 is an frugal number, since it uses more digits than its factorization.

389198804164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8696 (or 4348 counting only the distinct ones).

The product of its (nonzero) digits is 11943936, while the sum is 61.

The spelling of 389198804164 in words is "three hundred eighty-nine billion, one hundred ninety-eight million, eight hundred four thousand, one hundred sixty-four".