1223446745629 has 2 divisors, whose sum is σ = 1223446745630. Its totient is φ = 1223446745628.

The previous prime is 1223446745603. The next prime is 1223446745669. The reversal of 1223446745629 is 9265476443221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1054133424100 + 169313321529 = 1026710^2 + 411477^2 .

It is a cyclic number.

It is not a de Polignac number, because 1223446745629 - 2⁵ = 1223446745597 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1223446745629.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1223446745669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611723372814 + 611723372815.

It is an arithmetic number, because the mean of its divisors is an integer number (611723372815).

Almost surely, 2^{1223446745629} is an apocalyptic number.

It is an amenable number.

1223446745629 is a deficient number, since it is larger than the sum of its proper divisors (1).

1223446745629 is an equidigital number, since it uses as much as digits as its factorization.

1223446745629 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17418240, while the sum is 55.

The spelling of 1223446745629 in words is "one trillion, two hundred twenty-three billion, four hundred forty-six million, seven hundred forty-five thousand, six hundred twenty-nine".