9728994019 has 2 divisors, whose sum is σ = 9728994020. Its totient is φ = 9728994018.

The previous prime is 9728994013. The next prime is 9728994047. The reversal of 9728994019 is 9104998279.

9728994019 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9728994019 - 2⁷ = 9728993891 is a prime.

It is a super-2 number, since 2×9728994019² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (9728994013) 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 as a sum of consecutive naturals, namely, 4864497009 + 4864497010.

It is an arithmetic number, because the mean of its divisors is an integer number (4864497010).

Almost surely, 2^9728994019 is an apocalyptic number.

9728994019 is a deficient number, since it is larger than the sum of its proper divisors (1).

9728994019 is an equidigital number, since it uses as much as digits as its factorization.

9728994019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2939328, while the sum is 58.

The square root of 9728994019 is about 98635.6630179977. The cubic root of 9728994019 is about 2134.7940259841.

The spelling of 9728994019 in words is "nine billion, seven hundred twenty-eight million, nine hundred ninety-four thousand, nineteen".