961452808369 has 9 divisors (see below), whose sum is σ = 988177610721. Its totient is φ = 935432298000.

The previous prime is 961452808361. The next prime is 961452808387. The reversal of 961452808369 is 963808254169.

The square root of 961452808369 is 980537.

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

It can be written as a sum of positive squares in 4 ways, for example, as 82194023025 + 879258785344 = 286695^2 + 937688^2 .

It is not a de Polignac number, because 961452808369 - 2³ = 961452808361 is a prime.

It is a super-2 number, since 2×961452808369² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (961452808361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 36266619 + ... + 36293119.

Almost surely, 2^961452808369 is an apocalyptic number.

961452808369 is the 980537-th square number.

961452808369 is the 490269-th centered octagonal number.

It is an amenable number.

961452808369 is a deficient number, since it is larger than the sum of its proper divisors (26724802352).

961452808369 is an frugal number, since it uses more digits than its factorization.

961452808369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53076 (or 26538 counting only the distinct ones).

The product of its (nonzero) digits is 22394880, while the sum is 61.

The spelling of 961452808369 in words is "nine hundred sixty-one billion, four hundred fifty-two million, eight hundred eight thousand, three hundred sixty-nine".