9681248215 has 4 divisors (see below), whose sum is σ = 11617497864. Its totient is φ = 7744998568.

The previous prime is 9681248183. The next prime is 9681248231. The reversal of 9681248215 is 5128421869.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5128421869 = 39829 ⋅128761.

It is a cyclic number.

It is not a de Polignac number, because 9681248215 - 2⁵ = 9681248183 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 968124817 + ... + 968124826.

It is an arithmetic number, because the mean of its divisors is an integer number (2904374466).

Almost surely, 2^9681248215 is an apocalyptic number.

9681248215 is a deficient number, since it is larger than the sum of its proper divisors (1936249649).

9681248215 is a wasteful number, since it uses less digits than its factorization.

9681248215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1936249648.

The product of its digits is 276480, while the sum is 46.

The square root of 9681248215 is about 98393.3342000361. The cubic root of 9681248215 is about 2131.2960743272.

The spelling of 9681248215 in words is "nine billion, six hundred eighty-one million, two hundred forty-eight thousand, two hundred fifteen".