9796819819 has 2 divisors, whose sum is σ = 9796819820. Its totient is φ = 9796819818.

The previous prime is 9796819793. The next prime is 9796819861. The reversal of 9796819819 is 9189186979.

9796819819 is digitally balanced in base 3, 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 9796819819 - 2²¹ = 9794722667 is a prime.

It is a super-2 number, since 2×9796819819² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (9796819889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4898409909 + 4898409910.

It is an arithmetic number, because the mean of its divisors is an integer number (4898409910).

Almost surely, 2^9796819819 is an apocalyptic number.

9796819819 is a deficient number, since it is larger than the sum of its proper divisors (1).

9796819819 is an equidigital number, since it uses as much as digits as its factorization.

9796819819 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17635968, while the sum is 67.

The square root of 9796819819 is about 98978.8857231683. The cubic root of 9796819819 is about 2139.7434562325.

The spelling of 9796819819 in words is "nine billion, seven hundred ninety-six million, eight hundred nineteen thousand, eight hundred nineteen".