9849449489 has 6 divisors (see below), whose sum is σ = 10826254530. Its totient is φ = 8954044880.

The previous prime is 9849449483. The next prime is 9849449509.

9849449489 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in only one way, i.e., 8305588225 + 1543861264 = 91135^2 + 39292^2 .

It is a de Polignac number, because none of the positive numbers 2^k-9849449489 is a prime.

It is a super-2 number, since 2×9849449489² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9849449483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 40700084 + ... + 40700325.

It is an arithmetic number, because the mean of its divisors is an integer number (1804375755).

Almost surely, 2^9849449489 is an apocalyptic number.

It is an amenable number.

9849449489 is a deficient number, since it is larger than the sum of its proper divisors (976805041).

9849449489 is a wasteful number, since it uses less digits than its factorization.

9849449489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81400431 (or 81400420 counting only the distinct ones).

The product of its digits is 107495424, while the sum is 68.

The square root of 9849449489 is about 99244.3927332925. The cubic root of 9849449489 is about 2143.5682665697.

The spelling of 9849449489 in words is "nine billion, eight hundred forty-nine million, four hundred forty-nine thousand, four hundred eighty-nine".