9994189633 has 4 divisors (see below), whose sum is σ = 9994429060. Its totient is φ = 9993950208.

The previous prime is 9994189631. The next prime is 9994189657. The reversal of 9994189633 is 3369814999.

9994189633 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3369814999 = 14173 ⋅237763.

It can be written as a sum of positive squares in 2 ways, for example, as 2578913089 + 7415276544 = 50783^2 + 86112^2 .

It is a cyclic number.

It is not a de Polignac number, because 9994189633 - 2¹ = 9994189631 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9994189631) 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 3 ways as a sum of consecutive naturals, for example, 38928 + ... + 146641.

It is an arithmetic number, because the mean of its divisors is an integer number (2498607265).

Almost surely, 2^9994189633 is an apocalyptic number.

It is an amenable number.

9994189633 is a deficient number, since it is larger than the sum of its proper divisors (239427).

9994189633 is a wasteful number, since it uses less digits than its factorization.

9994189633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239426.

The product of its digits is 11337408, while the sum is 61.

The square root of 9994189633 is about 99970.9439437280. The cubic root of 9994189633 is about 2154.0173406488.

The spelling of 9994189633 in words is "nine billion, nine hundred ninety-four million, one hundred eighty-nine thousand, six hundred thirty-three".