2309321859409 has 16 divisors (see below), whose sum is σ = 2388670156800. Its totient is φ = 2231241099984.

The previous prime is 2309321859373. The next prime is 2309321859473. The reversal of 2309321859409 is 9049581239032.

It is a cyclic number.

It is not a de Polignac number, because 2309321859409 - 2²¹ = 2309319762257 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2309321859409.

It is not an unprimeable number, because it can be changed into a prime (2309321859479) 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 in 15 ways as a sum of consecutive naturals, for example, 26642062 + ... + 26728600.

It is an arithmetic number, because the mean of its divisors is an integer number (149291884800).

Almost surely, 2^{2309321859409} is an apocalyptic number.

It is an amenable number.

2309321859409 is a deficient number, since it is larger than the sum of its proper divisors (79348297391).

2309321859409 is an equidigital number, since it uses as much as digits as its factorization.

2309321859409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93852.

The product of its (nonzero) digits is 4199040, while the sum is 55.

The spelling of 2309321859409 in words is "two trillion, three hundred nine billion, three hundred twenty-one million, eight hundred fifty-nine thousand, four hundred nine".