326163205449 has 9 divisors (see below), whose sum is σ = 471127104903. Its totient is φ = 217440994752.

The previous prime is 326163205427. The next prime is 326163205451. The reversal of 326163205449 is 944502361623.

The square root of 326163205449 is 571107.

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

326163205449 is a `hidden beast` number, since 3 + 2 + 6 + 1 + 632 + 0 + 5 + 4 + 4 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 167883849 + 325995321600 = 12957^2 + 570960^2 .

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 326163205449 - 2¹³ = 326163197257 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (326163205409) 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, 1618137 + ... + 1808505.

Almost surely, 2^326163205449 is an apocalyptic number.

326163205449 is the 571107-th square number.

326163205449 is the 285554-th centered octagonal number.

It is an amenable number.

326163205449 is a deficient number, since it is larger than the sum of its proper divisors (144963899454).

326163205449 is an frugal number, since it uses more digits than its factorization.

326163205449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380744 (or 190372 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 45.

The spelling of 326163205449 in words is "three hundred twenty-six billion, one hundred sixty-three million, two hundred five thousand, four hundred forty-nine".