9913878323 has 2 divisors, whose sum is σ = 9913878324. Its totient is φ = 9913878322.

The previous prime is 9913878277. The next prime is 9913878329. The reversal of 9913878323 is 3238783199.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 9913878323 - 2¹² = 9913874227 is a prime.

It is not a weakly prime, because it can be changed into another prime (9913878329) 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 as a sum of consecutive naturals, namely, 4956939161 + 4956939162.

It is an arithmetic number, because the mean of its divisors is an integer number (4956939162).

Almost surely, 2^9913878323 is an apocalyptic number.

9913878323 is a deficient number, since it is larger than the sum of its proper divisors (1).

9913878323 is an equidigital number, since it uses as much as digits as its factorization.

9913878323 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1959552, while the sum is 53.

The square root of 9913878323 is about 99568.4604832273. The cubic root of 9913878323 is about 2148.2320655097.

The spelling of 9913878323 in words is "nine billion, nine hundred thirteen million, eight hundred seventy-eight thousand, three hundred twenty-three".