9765646916 has 6 divisors (see below), whose sum is σ = 17089882110. Its totient is φ = 4882823456.

The previous prime is 9765646909. The next prime is 9765646921. The reversal of 9765646916 is 6196465679.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 9505470016 + 260176900 = 97496^2 + 16130^2 .

It is a super-2 number, since 2×9765646916² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1220705861 + ... + 1220705868.

It is an arithmetic number, because the mean of its divisors is an integer number (2848313685).

Almost surely, 2^9765646916 is an apocalyptic number.

It is an amenable number.

9765646916 is a deficient number, since it is larger than the sum of its proper divisors (7324235194).

9765646916 is a wasteful number, since it uses less digits than its factorization.

9765646916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2441411733 (or 2441411731 counting only the distinct ones).

The product of its digits is 14696640, while the sum is 59.

The square root of 9765646916 is about 98821.2877673632. The cubic root of 9765646916 is about 2137.4715323135.

The spelling of 9765646916 in words is "nine billion, seven hundred sixty-five million, six hundred forty-six thousand, nine hundred sixteen".