9499965989 has 4 divisors (see below), whose sum is σ = 9563724300. Its totient is φ = 9436207680.

The previous prime is 9499965953. The next prime is 9499966001. The reversal of 9499965989 is 9895699949.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9895699949 = 17 ⋅582099997.

It can be written as a sum of positive squares in 2 ways, for example, as 4541412100 + 4958553889 = 67390^2 + 70417^2 .

It is a cyclic number.

It is not a de Polignac number, because 9499965989 - 2⁸ = 9499965733 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9499965949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31878932 + ... + 31879229.

It is an arithmetic number, because the mean of its divisors is an integer number (2390931075).

Almost surely, 2^9499965989 is an apocalyptic number.

It is an amenable number.

9499965989 is a deficient number, since it is larger than the sum of its proper divisors (63758311).

9499965989 is a wasteful number, since it uses less digits than its factorization.

9499965989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63758310.

The product of its digits is 510183360, while the sum is 77.

The square root of 9499965989 is about 97467.7689751848. The cubic root of 9499965989 is about 2117.9092646754.

The spelling of 9499965989 in words is "nine billion, four hundred ninety-nine million, nine hundred sixty-five thousand, nine hundred eighty-nine".