9720000019 has 4 divisors (see below), whose sum is σ = 10291764744. Its totient is φ = 9148235296.

The previous prime is 9720000013. The next prime is 9720000041. The reversal of 9720000019 is 9100000279.

9720000019 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.

It is not a de Polignac number, because 9720000019 - 2²⁹ = 9183129107 is a prime.

It is a super-2 number, since 2×9720000019² (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 (9720000013) 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, 285882337 + ... + 285882370.

It is an arithmetic number, because the mean of its divisors is an integer number (2572941186).

Almost surely, 2^9720000019 is an apocalyptic number.

9720000019 is a deficient number, since it is larger than the sum of its proper divisors (571764725).

9720000019 is a wasteful number, since it uses less digits than its factorization.

9720000019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 571764724.

The product of its (nonzero) digits is 1134, while the sum is 28.

The square root of 9720000019 is about 98590.0604472885. The cubic root of 9720000019 is about 2134.1359840846.

The spelling of 9720000019 in words is "nine billion, seven hundred twenty million, nineteen", and thus it is an aban number.