1244552445593 has 2 divisors, whose sum is σ = 1244552445594. Its totient is φ = 1244552445592.

The previous prime is 1244552445481. The next prime is 1244552445599. The reversal of 1244552445593 is 3955442554421.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1222068342784 + 22484102809 = 1105472^2 + 149947^2 .

It is a cyclic number.

It is not a de Polignac number, because 1244552445593 - 2¹² = 1244552441497 is a prime.

It is not a weakly prime, because it can be changed into another prime (1244552445599) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 622276222796 + 622276222797.

It is an arithmetic number, because the mean of its divisors is an integer number (622276222797).

Almost surely, 2^{1244552445593} is an apocalyptic number.

It is an amenable number.

1244552445593 is a deficient number, since it is larger than the sum of its proper divisors (1).

1244552445593 is an equidigital number, since it uses as much as digits as its factorization.

1244552445593 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17280000, while the sum is 53.

The spelling of 1244552445593 in words is "one trillion, two hundred forty-four billion, five hundred fifty-two million, four hundred forty-five thousand, five hundred ninety-three".