9749777916 has 48 divisors (see below), whose sum is σ = 24095576736. Its totient is φ = 3057752064.

The previous prime is 9749777887. The next prime is 9749777929. The reversal of 9749777916 is 6197779479.

9749777916 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×9749777916³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 842280 + ... + 853776.

It is an arithmetic number, because the mean of its divisors is an integer number (501991182).

Almost surely, 2^9749777916 is an apocalyptic number.

It is an amenable number.

9749777916 is an abundant number, since it is smaller than the sum of its proper divisors (14345798820).

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

9749777916 is a wasteful number, since it uses less digits than its factorization.

9749777916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15678 (or 15676 counting only the distinct ones).

The product of its digits is 42007896, while the sum is 66.

The square root of 9749777916 is about 98740.9637182056. The cubic root of 9749777916 is about 2136.3131203988.

The spelling of 9749777916 in words is "nine billion, seven hundred forty-nine million, seven hundred seventy-seven thousand, nine hundred sixteen".