9680217861 has 4 divisors (see below), whose sum is σ = 12906957152. Its totient is φ = 6453478572.

The previous prime is 9680217797. The next prime is 9680217863. The reversal of 9680217861 is 1687120869.

9680217861 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 9680217861 - 2⁶ = 9680217797 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 9680217861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9680217863) 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, 1613369641 + ... + 1613369646.

It is an arithmetic number, because the mean of its divisors is an integer number (3226739288).

Almost surely, 2^9680217861 is an apocalyptic number.

It is an amenable number.

9680217861 is a deficient number, since it is larger than the sum of its proper divisors (3226739291).

9680217861 is a wasteful number, since it uses less digits than its factorization.

9680217861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3226739290.

The product of its (nonzero) digits is 290304, while the sum is 48.

The square root of 9680217861 is about 98388.0981674105. The cubic root of 9680217861 is about 2131.2204619235.

The spelling of 9680217861 in words is "nine billion, six hundred eighty million, two hundred seventeen thousand, eight hundred sixty-one".