9679512961 has 4 divisors (see below), whose sum is σ = 10013289300. Its totient is φ = 9345736624.

The previous prime is 9679512949. The next prime is 9679512971. The reversal of 9679512961 is 1692159769.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7663951936 + 2015561025 = 87544^2 + 44895^2 .

It is a cyclic number.

It is not a de Polignac number, because 9679512961 - 2¹⁷ = 9679381889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9679512971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 166888126 + ... + 166888183.

It is an arithmetic number, because the mean of its divisors is an integer number (2503322325).

Almost surely, 2^9679512961 is an apocalyptic number.

It is an amenable number.

9679512961 is a deficient number, since it is larger than the sum of its proper divisors (333776339).

9679512961 is a wasteful number, since it uses less digits than its factorization.

9679512961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333776338.

The product of its digits is 1837080, while the sum is 55.

The square root of 9679512961 is about 98384.5158599665. The cubic root of 9679512961 is about 2131.1687298313.

The spelling of 9679512961 in words is "nine billion, six hundred seventy-nine million, five hundred twelve thousand, nine hundred sixty-one".