9969934489 has 4 divisors (see below), whose sum is σ = 10133376100. Its totient is φ = 9806492880.

The previous prime is 9969934487. The next prime is 9969934547. The reversal of 9969934489 is 9844399699.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 538611264 + 9431323225 = 23208^2 + 97115^2 .

It is a cyclic number.

It is not a de Polignac number, because 9969934489 - 2¹ = 9969934487 is a prime.

It is a super-2 number, since 2×9969934489² (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 (9969934487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81720714 + ... + 81720835.

It is an arithmetic number, because the mean of its divisors is an integer number (2533344025).

Almost surely, 2^9969934489 is an apocalyptic number.

It is an amenable number.

9969934489 is a deficient number, since it is larger than the sum of its proper divisors (163441611).

9969934489 is a wasteful number, since it uses less digits than its factorization.

9969934489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163441610.

The product of its digits is 136048896, while the sum is 70.

The square root of 9969934489 is about 99849.5592829533. The cubic root of 9969934489 is about 2152.2733832270.

The spelling of 9969934489 in words is "nine billion, nine hundred sixty-nine million, nine hundred thirty-four thousand, four hundred eighty-nine".