9805849012 has 12 divisors (see below), whose sum is σ = 17161043620. Its totient is φ = 4902693696.

The previous prime is 9805848973. The next prime is 9805849093. The reversal of 9805849012 is 2109485089.

It can be written as a sum of positive squares in 2 ways, for example, as 1571012496 + 8234836516 = 39636^2 + 90746^2 .

It is a super-2 number, since 2×9805849012² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68608 + ... + 155944.

Almost surely, 2^9805849012 is an apocalyptic number.

It is an amenable number.

9805849012 is a deficient number, since it is larger than the sum of its proper divisors (7355194608).

9805849012 is a wasteful number, since it uses less digits than its factorization.

9805849012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115410 (or 115408 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 46.

The square root of 9805849012 is about 99024.4869312636. The cubic root of 9805849012 is about 2140.4006158886.

The spelling of 9805849012 in words is "nine billion, eight hundred five million, eight hundred forty-nine thousand, twelve".