9198128841 has 16 divisors (see below), whose sum is σ = 13383549120. Its totient is φ = 5572768320.

The previous prime is 9198128801. The next prime is 9198128897. The reversal of 9198128841 is 1488218919.

It is not a de Polignac number, because 9198128841 - 2¹¹ = 9198126793 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9198128801) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57771 + ... + 147423.

It is an arithmetic number, because the mean of its divisors is an integer number (836471820).

Almost surely, 2^9198128841 is an apocalyptic number.

It is an amenable number.

9198128841 is a deficient number, since it is larger than the sum of its proper divisors (4185420279).

9198128841 is a wasteful number, since it uses less digits than its factorization.

9198128841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92776.

The product of its digits is 331776, while the sum is 51.

The square root of 9198128841 is about 95906.8758796782. The cubic root of 9198128841 is about 2095.2370391942.

The spelling of 9198128841 in words is "nine billion, one hundred ninety-eight million, one hundred twenty-eight thousand, eight hundred forty-one".