9982765771 has 8 divisors (see below), whose sum is σ = 10891082304. Its totient is φ = 9074581320.

The previous prime is 9982765769. The next prime is 9982765777. The reversal of 9982765771 is 1775672899.

9982765771 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9982765771 - 2¹ = 9982765769 is a prime.

It is a super-2 number, since 2×9982765771² (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 (9982765777) 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, 191316 + ... + 237838.

It is an arithmetic number, because the mean of its divisors is an integer number (1361385288).

Almost surely, 2^9982765771 is an apocalyptic number.

9982765771 is a deficient number, since it is larger than the sum of its proper divisors (908316533).

9982765771 is a wasteful number, since it uses less digits than its factorization.

9982765771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66041.

The product of its digits is 13335840, while the sum is 61.

The square root of 9982765771 is about 99913.7916956413. The cubic root of 9982765771 is about 2153.1963109818.

The spelling of 9982765771 in words is "nine billion, nine hundred eighty-two million, seven hundred sixty-five thousand, seven hundred seventy-one".