82390009329 has 40 divisors (see below), whose sum is σ = 130558284648. Its totient is φ = 51599669760.

The previous prime is 82390009327. The next prime is 82390009349. The reversal of 82390009329 is 92390009328.

It can be written as a sum of positive squares in 4 ways, for example, as 25872079104 + 56517930225 = 160848^2 + 237735^2 .

It is not a de Polignac number, because 82390009329 - 2¹ = 82390009327 is a prime.

It is a super-2 number, since 2×82390009329² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (82390009321) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 689659 + ... + 800255.

Almost surely, 2^82390009329 is an apocalyptic number.

It is an amenable number.

82390009329 is a deficient number, since it is larger than the sum of its proper divisors (48168275319).

82390009329 is a wasteful number, since it uses less digits than its factorization.

82390009329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111167 (or 111158 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 45.

Subtracting 82390009329 from its reverse (92390009328), we obtain a palindrome (9999999999).

The spelling of 82390009329 in words is "eighty-two billion, three hundred ninety million, nine thousand, three hundred twenty-nine".