9894716081 has 8 divisors (see below), whose sum is σ = 10327155264. Its totient is φ = 9462463120.

The previous prime is 9894716077. The next prime is 9894716107. The reversal of 9894716081 is 1806174989.

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

It is not a de Polignac number, because 9894716081 - 2² = 9894716077 is a prime.

It is a super-2 number, since 2×9894716081² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (9894716011) 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, 68066 + ... + 156276.

It is an arithmetic number, because the mean of its divisors is an integer number (1290894408).

Almost surely, 2^9894716081 is an apocalyptic number.

It is an amenable number.

9894716081 is a deficient number, since it is larger than the sum of its proper divisors (432439183).

9894716081 is a wasteful number, since it uses less digits than its factorization.

9894716081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93111.

The product of its (nonzero) digits is 870912, while the sum is 53.

The square root of 9894716081 is about 99472.1874746906. The cubic root of 9894716081 is about 2146.8470880719.

The spelling of 9894716081 in words is "nine billion, eight hundred ninety-four million, seven hundred sixteen thousand, eighty-one".