9939819273 has 8 divisors (see below), whose sum is σ = 13354261536. Its totient is φ = 6575961600.

The previous prime is 9939819259. The next prime is 9939819283. The reversal of 9939819273 is 3729189399.

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

It is not a de Polignac number, because 9939819273 - 2¹⁰ = 9939818249 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9939819203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12645688 + ... + 12646473.

It is an arithmetic number, because the mean of its divisors is an integer number (1669282692).

Almost surely, 2^9939819273 is an apocalyptic number.

It is an amenable number.

9939819273 is a deficient number, since it is larger than the sum of its proper divisors (3414442263).

9939819273 is a wasteful number, since it uses less digits than its factorization.

9939819273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25292295.

The product of its digits is 6613488, while the sum is 60.

The square root of 9939819273 is about 99698.6422826309. The cubic root of 9939819273 is about 2150.1041429994.

The spelling of 9939819273 in words is "nine billion, nine hundred thirty-nine million, eight hundred nineteen thousand, two hundred seventy-three".