1205499323349 has 16 divisors (see below), whose sum is σ = 1786202112000. Its totient is φ = 803541480768.

The previous prime is 1205499323309. The next prime is 1205499323411. The reversal of 1205499323349 is 9433239945021.

1205499323349 is a `hidden beast` number, since 1 + 2 + 0 + 549 + 93 + 2 + 3 + 3 + 4 + 9 = 666.

It is not a de Polignac number, because 1205499323349 - 2⁹ = 1205499322837 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1205499323295 and 1205499323304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1205499323309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3287509 + ... + 3635754.

It is an arithmetic number, because the mean of its divisors is an integer number (111637632000).

Almost surely, 2^{1205499323349} is an apocalyptic number.

It is an amenable number.

1205499323349 is a deficient number, since it is larger than the sum of its proper divisors (580702788651).

1205499323349 is an equidigital number, since it uses as much as digits as its factorization.

1205499323349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6929721 (or 6929715 counting only the distinct ones).

The product of its (nonzero) digits is 6298560, while the sum is 54.

The spelling of 1205499323349 in words is "one trillion, two hundred five billion, four hundred ninety-nine million, three hundred twenty-three thousand, three hundred forty-nine".