9979002772 has 24 divisors (see below), whose sum is σ = 17643228512. Its totient is φ = 4938343200.

The previous prime is 9979002769. The next prime is 9979002773. The reversal of 9979002772 is 2772009799.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9979002773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120103 + ... + 185425.

Almost surely, 2^9979002772 is an apocalyptic number.

It is an amenable number.

9979002772 is a deficient number, since it is larger than the sum of its proper divisors (7664225740).

9979002772 is a wasteful number, since it uses less digits than its factorization.

9979002772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65719 (or 65717 counting only the distinct ones).

The product of its (nonzero) digits is 1000188, while the sum is 52.

The square root of 9979002772 is about 99894.9586916177. The cubic root of 9979002772 is about 2152.9257281915.

The spelling of 9979002772 in words is "nine billion, nine hundred seventy-nine million, two thousand, seven hundred seventy-two".