1223244657689 has 8 divisors (see below), whose sum is σ = 1239053262720. Its totient is φ = 1207444165200.

The previous prime is 1223244657667. The next prime is 1223244657727. The reversal of 1223244657689 is 9867564423221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1223244657689 - 2²⁰ = 1223243609113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1223244057689) 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 7 ways as a sum of consecutive naturals, for example, 1724327 + ... + 2328044.

It is an arithmetic number, because the mean of its divisors is an integer number (154881657840).

Almost surely, 2^{1223244657689} is an apocalyptic number.

It is an amenable number.

1223244657689 is a deficient number, since it is larger than the sum of its proper divisors (15808605031).

1223244657689 is an equidigital number, since it uses as much as digits as its factorization.

1223244657689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4056271.

The product of its digits is 34836480, while the sum is 59.

The spelling of 1223244657689 in words is "one trillion, two hundred twenty-three billion, two hundred forty-four million, six hundred fifty-seven thousand, six hundred eighty-nine".