1143443409989 has 2 divisors, whose sum is σ = 1143443409990. Its totient is φ = 1143443409988.

The previous prime is 1143443409949. The next prime is 1143443410099. The reversal of 1143443409989 is 9899043443411.

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., 757174944964 + 386268465025 = 870158^2 + 621505^2 .

It is a cyclic number.

It is not a de Polignac number, because 1143443409989 - 2³² = 1139148442693 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1143443409949) 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 as a sum of consecutive naturals, namely, 571721704994 + 571721704995.

It is an arithmetic number, because the mean of its divisors is an integer number (571721704995).

Almost surely, 2^{1143443409989} is an apocalyptic number.

It is an amenable number.

1143443409989 is a deficient number, since it is larger than the sum of its proper divisors (1).

1143443409989 is an equidigital number, since it uses as much as digits as its factorization.

1143443409989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13436928, while the sum is 59.

The spelling of 1143443409989 in words is "one trillion, one hundred forty-three billion, four hundred forty-three million, four hundred nine thousand, nine hundred eighty-nine".