2005321269 has 16 divisors (see below), whose sum is σ = 3057664640. Its totient is φ = 1145171520.

The previous prime is 2005321249. The next prime is 2005321271. The reversal of 2005321269 is 9621235002.

It is not a de Polignac number, because 2005321269 - 2¹⁷ = 2005190197 is a prime.

It is a super-2 number, since 2×2005321269² = 8042626783807540722, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2005321249) 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 in 15 ways as a sum of consecutive naturals, for example, 4587 + ... + 63495.

It is an arithmetic number, because the mean of its divisors is an integer number (191104040).

Almost surely, 2^2005321269 is an apocalyptic number.

It is an amenable number.

2005321269 is a deficient number, since it is larger than the sum of its proper divisors (1052343371).

2005321269 is a wasteful number, since it uses less digits than its factorization.

2005321269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60540.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 2005321269 is about 44780.8136259269. The cubic root of 2005321269 is about 1261.0374568334.

The spelling of 2005321269 in words is "two billion, five million, three hundred twenty-one thousand, two hundred sixty-nine".