9619979443 has 2 divisors, whose sum is σ = 9619979444. Its totient is φ = 9619979442.

The previous prime is 9619979399. The next prime is 9619979449. The reversal of 9619979443 is 3449799169.

It is a strong prime.

It is an emirp because it is prime and its reverse (3449799169) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9619979443 - 2²⁵ = 9586425011 is a prime.

It is not a weakly prime, because it can be changed into another prime (9619979449) 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, 4809989721 + 4809989722.

It is an arithmetic number, because the mean of its divisors is an integer number (4809989722).

Almost surely, 2^9619979443 is an apocalyptic number.

9619979443 is a deficient number, since it is larger than the sum of its proper divisors (1).

9619979443 is an equidigital number, since it uses as much as digits as its factorization.

9619979443 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13226976, while the sum is 61.

The square root of 9619979443 is about 98081.4938864616. The cubic root of 9619979443 is about 2126.7905143719.

The spelling of 9619979443 in words is "nine billion, six hundred nineteen million, nine hundred seventy-nine thousand, four hundred forty-three".