9994118729 has 16 divisors (see below), whose sum is σ = 12420586368. Its totient is φ = 7844573952.

The previous prime is 9994118711. The next prime is 9994118747. The reversal of 9994118729 is 9278114999.

It is an interprime number because it is at equal distance from previous prime (9994118711) and next prime (9994118747).

It is a cyclic number.

It is not a de Polignac number, because 9994118729 - 2⁸ = 9994118473 is a prime.

It is a Smith number, since the sum of its digits (59) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9994118759) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1130519 + ... + 1139324.

It is an arithmetic number, because the mean of its divisors is an integer number (776286648).

Almost surely, 2^9994118729 is an apocalyptic number.

It is an amenable number.

9994118729 is a deficient number, since it is larger than the sum of its proper divisors (2426467639).

9994118729 is a wasteful number, since it uses less digits than its factorization.

9994118729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2269904.

The product of its digits is 2939328, while the sum is 59.

The square root of 9994118729 is about 99970.5893200595. The cubic root of 9994118729 is about 2154.0122467288.

The spelling of 9994118729 in words is "nine billion, nine hundred ninety-four million, one hundred eighteen thousand, seven hundred twenty-nine".