1112345557789 has 2 divisors, whose sum is σ = 1112345557790. Its totient is φ = 1112345557788.

The previous prime is 1112345557723. The next prime is 1112345557793. The reversal of 1112345557789 is 9877555432111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1089038344900 + 23307212889 = 1043570^2 + 152667^2 .

It is a cyclic number.

It is not a de Polignac number, because 1112345557789 - 2⁹ = 1112345557277 is a prime.

It is a plaindrome in base 10.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1112345552789) 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 as a sum of consecutive naturals, namely, 556172778894 + 556172778895.

It is an arithmetic number, because the mean of its divisors is an integer number (556172778895).

Almost surely, 2^{1112345557789} is an apocalyptic number.

It is an amenable number.

1112345557789 is a deficient number, since it is larger than the sum of its proper divisors (1).

1112345557789 is an equidigital number, since it uses as much as digits as its factorization.

1112345557789 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10584000, while the sum is 58.

The spelling of 1112345557789 in words is "one trillion, one hundred twelve billion, three hundred forty-five million, five hundred fifty-seven thousand, seven hundred eighty-nine".