9849123381 has 16 divisors (see below), whose sum is σ = 13221457920. Its totient is φ = 6521543280.

The previous prime is 9849123353. The next prime is 9849123391. The reversal of 9849123381 is 1833219489.

It is not a de Polignac number, because 9849123381 - 2⁷ = 9849123253 is a prime.

It is a super-2 number, since 2×9849123381² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 9849123381.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9849123331) 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, 364566 + ... + 390648.

It is an arithmetic number, because the mean of its divisors is an integer number (826341120).

Almost surely, 2^9849123381 is an apocalyptic number.

It is an amenable number.

9849123381 is a deficient number, since it is larger than the sum of its proper divisors (3372334539).

9849123381 is a wasteful number, since it uses less digits than its factorization.

9849123381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26936.

The product of its digits is 373248, while the sum is 48.

The square root of 9849123381 is about 99242.7497654111. The cubic root of 9849123381 is about 2143.5446089878.

The spelling of 9849123381 in words is "nine billion, eight hundred forty-nine million, one hundred twenty-three thousand, three hundred eighty-one".