9541968489 has 9 divisors (see below), whose sum is σ = 13783266679. Its totient is φ = 6361116960.

The previous prime is 9541968479. The next prime is 9541968497. The reversal of 9541968489 is 9848691459.

The square root of 9541968489 is 97683.

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

9541968489 is a `hidden beast` number, since 9 + 541 + 9 + 6 + 8 + 4 + 89 = 666.

It can be written as a sum of positive squares in only one way, i.e., 7407528489 + 2134440000 = 86067^2 + 46200^2 .

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

It is not a de Polignac number, because 9541968489 - 2⁹ = 9541967977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9541968409) 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, 276769 + ... + 309329.

Almost surely, 2^9541968489 is an apocalyptic number.

9541968489 is the 97683-rd square number.

9541968489 is the 48842-nd centered octagonal number.

It is an amenable number.

9541968489 is a deficient number, since it is larger than the sum of its proper divisors (4241298190).

9541968489 is an frugal number, since it uses more digits than its factorization.

9541968489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65128 (or 32564 counting only the distinct ones).

The product of its digits is 22394880, while the sum is 63.

The cubic root of 9541968489 is about 2121.0260022007.

The spelling of 9541968489 in words is "nine billion, five hundred forty-one million, nine hundred sixty-eight thousand, four hundred eighty-nine".