9664876880 has 20 divisors (see below), whose sum is σ = 22470838932. Its totient is φ = 3865950720.

The previous prime is 9664876877. The next prime is 9664876883. The reversal of 9664876880 is 886784669.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (9664876877) and next prime (9664876883).

It can be written as a sum of positive squares in 2 ways, for example, as 3985144384 + 5679732496 = 63128^2 + 75364^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9664876883) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60405401 + ... + 60405560.

Almost surely, 2^9664876880 is an apocalyptic number.

It is an amenable number.

9664876880 is an abundant number, since it is smaller than the sum of its proper divisors (12805962052).

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

9664876880 is a wasteful number, since it uses less digits than its factorization.

9664876880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120810974 (or 120810968 counting only the distinct ones).

The product of its (nonzero) digits is 27869184, while the sum is 62.

The square root of 9664876880 is about 98310.1056860382. The cubic root of 9664876880 is about 2130.0940306891.

The spelling of 9664876880 in words is "nine billion, six hundred sixty-four million, eight hundred seventy-six thousand, eight hundred eighty".