9891424113 has 8 divisors (see below), whose sum is σ = 13208520576. Its totient is φ = 6584305200.

The previous prime is 9891424087. The next prime is 9891424129. The reversal of 9891424113 is 3114241989.

9891424113 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 9891424113 - 2¹³ = 9891415921 is a prime.

It is a super-3 number, since 3×9891424113³ (a number of 31 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (9891424513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2492073 + ... + 2496038.

It is an arithmetic number, because the mean of its divisors is an integer number (1651065072).

Almost surely, 2^9891424113 is an apocalyptic number.

It is an amenable number.

9891424113 is a deficient number, since it is larger than the sum of its proper divisors (3317096463).

9891424113 is a wasteful number, since it uses less digits than its factorization.

9891424113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4988775.

The product of its digits is 62208, while the sum is 42.

The square root of 9891424113 is about 99455.6389200733. The cubic root of 9891424113 is about 2146.6089766135.

The spelling of 9891424113 in words is "nine billion, eight hundred ninety-one million, four hundred twenty-four thousand, one hundred thirteen".