9798781183 has 16 divisors (see below), whose sum is σ = 10273324320. Its totient is φ = 9337536000.

The previous prime is 9798781171. The next prime is 9798781189. The reversal of 9798781183 is 3811878979.

It is a cyclic number.

It is not a de Polignac number, because 9798781183 - 2²⁹ = 9261910271 is a prime.

It is a super-2 number, since 2×9798781183² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9798781189) 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, 366883 + ... + 392683.

It is an arithmetic number, because the mean of its divisors is an integer number (642082770).

Almost surely, 2^9798781183 is an apocalyptic number.

9798781183 is a deficient number, since it is larger than the sum of its proper divisors (474543137).

9798781183 is a wasteful number, since it uses less digits than its factorization.

9798781183 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26058.

The product of its digits is 6096384, while the sum is 61.

The square root of 9798781183 is about 98988.7932192327. The cubic root of 9798781183 is about 2139.8862418785.

The spelling of 9798781183 in words is "nine billion, seven hundred ninety-eight million, seven hundred eighty-one thousand, one hundred eighty-three".