329369244649 has 9 divisors (see below), whose sum is σ = 338533532631. Its totient is φ = 320446712520.

The previous prime is 329369244641. The next prime is 329369244679. The reversal of 329369244649 is 946442963923.

The square root of 329369244649 is 573907.

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

It can be written as a sum of positive squares in only one way, i.e., 294724123225 + 34645121424 = 542885^2 + 186132^2 .

It is not a de Polignac number, because 329369244649 - 2³ = 329369244641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (329369244641) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 21226804 + ... + 21242314.

It is an arithmetic number, because the mean of its divisors is an integer number (37614836959).

Almost surely, 2^329369244649 is an apocalyptic number.

329369244649 is the 573907-th square number.

329369244649 is the 286954-th centered octagonal number.

It is an amenable number.

329369244649 is a deficient number, since it is larger than the sum of its proper divisors (9164287982).

329369244649 is an frugal number, since it uses more digits than its factorization.

329369244649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31096 (or 15548 counting only the distinct ones).

The product of its digits is 60466176, while the sum is 61.

The spelling of 329369244649 in words is "three hundred twenty-nine billion, three hundred sixty-nine million, two hundred forty-four thousand, six hundred forty-nine".