8905638319 has 2 divisors, whose sum is σ = 8905638320. Its totient is φ = 8905638318.

The previous prime is 8905638317. The next prime is 8905638359. The reversal of 8905638319 is 9138365098.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8905638319 - 2¹ = 8905638317 is a prime.

It is a super-2 number, since 2×8905638319² (a number of 21 digits) contains 22 as substring.

Together with 8905638317, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8905638317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4452819159 + 4452819160.

It is an arithmetic number, because the mean of its divisors is an integer number (4452819160).

Almost surely, 2^8905638319 is an apocalyptic number.

8905638319 is a deficient number, since it is larger than the sum of its proper divisors (1).

8905638319 is an equidigital number, since it uses as much as digits as its factorization.

8905638319 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1399680, while the sum is 52.

The square root of 8905638319 is about 94369.6896201317. The cubic root of 8905638319 is about 2072.7886302679.

The spelling of 8905638319 in words is "eight billion, nine hundred five million, six hundred thirty-eight thousand, three hundred nineteen".