9683815681 has 8 divisors (see below), whose sum is σ = 10028348928. Its totient is φ = 9341292000.

The previous prime is 9683815679. The next prime is 9683815693. The reversal of 9683815681 is 1865183869.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 9683815681 - 2¹ = 9683815679 is a prime.

It is a super-2 number, since 2×9683815681² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9683819681) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 492580 + ... + 511861.

It is an arithmetic number, because the mean of its divisors is an integer number (1253543616).

Almost surely, 2^9683815681 is an apocalyptic number.

It is an amenable number.

9683815681 is a deficient number, since it is larger than the sum of its proper divisors (344533247).

9683815681 is a wasteful number, since it uses less digits than its factorization.

9683815681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1004783.

The product of its digits is 2488320, while the sum is 55.

The square root of 9683815681 is about 98406.3802860363. The cubic root of 9683815681 is about 2131.4844641722.

The spelling of 9683815681 in words is "nine billion, six hundred eighty-three million, eight hundred fifteen thousand, six hundred eighty-one".