1223446745669 has 2 divisors, whose sum is σ = 1223446745670. Its totient is φ = 1223446745668.

The previous prime is 1223446745629. The next prime is 1223446745749. The reversal of 1223446745669 is 9665476443221.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1074093868225 + 149352877444 = 1036385^2 + 386462^2 .

It is a cyclic number.

It is not a de Polignac number, because 1223446745669 - 2³² = 1219151778373 is a prime.

It is a super-2 number, since 2×1223446745669² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1223446745629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611723372834 + 611723372835.

It is an arithmetic number, because the mean of its divisors is an integer number (611723372835).

Almost surely, 2^{1223446745669} is an apocalyptic number.

It is an amenable number.

1223446745669 is a deficient number, since it is larger than the sum of its proper divisors (1).

1223446745669 is an equidigital number, since it uses as much as digits as its factorization.

1223446745669 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 52254720, while the sum is 59.

The spelling of 1223446745669 in words is "one trillion, two hundred twenty-three billion, four hundred forty-six million, seven hundred forty-five thousand, six hundred sixty-nine".