9849971516 has 24 divisors (see below), whose sum is σ = 21490847616. Its totient is φ = 3837651120.

The previous prime is 9849971501. The next prime is 9849971519. The reversal of 9849971516 is 6151799489.

It is a super-2 number, since 2×9849971516² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9849971519) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15989906 + ... + 15990521.

It is an arithmetic number, because the mean of its divisors is an integer number (895451984).

Almost surely, 2^9849971516 is an apocalyptic number.

It is an amenable number.

9849971516 is an abundant number, since it is smaller than the sum of its proper divisors (11640876100).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9849971516 is a wasteful number, since it uses less digits than its factorization.

9849971516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31980449 (or 31980447 counting only the distinct ones).

The product of its digits is 4898880, while the sum is 59.

The square root of 9849971516 is about 99247.0227059734. The cubic root of 9849971516 is about 2143.6061360548.

The spelling of 9849971516 in words is "nine billion, eight hundred forty-nine million, nine hundred seventy-one thousand, five hundred sixteen".