9298858656409 has 27 divisors (see below), whose sum is σ = 10855739715093. Its totient is φ = 7942035939768.

The previous prime is 9298858656403. The next prime is 9298858656449. The reversal of 9298858656409 is 9046568588929.

The square root of 9298858656409 is 3049403.

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

It is not a de Polignac number, because 9298858656409 - 2¹³ = 9298858648217 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9298858656403) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 7833915714 + ... + 7833916900.

Almost surely, 2^{9298858656409} is an apocalyptic number.

9298858656409 is the 3049403-rd square number.

9298858656409 is the 1524702-nd centered octagonal number.

It is an amenable number.

9298858656409 is a deficient number, since it is larger than the sum of its proper divisors (1556881058684).

9298858656409 is an frugal number, since it uses more digits than its factorization.

9298858656409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3122 (or 1561 counting only the distinct ones).

The product of its (nonzero) digits is 2687385600, while the sum is 79.

The spelling of 9298858656409 in words is "nine trillion, two hundred ninety-eight billion, eight hundred fifty-eight million, six hundred fifty-six thousand, four hundred nine".