1443412221985 has 16 divisors (see below), whose sum is σ = 1823594774400. Its totient is φ = 1093752187776.

The previous prime is 1443412221983. The next prime is 1443412222157. The reversal of 1443412221985 is 5891222143441.

It is a cyclic number.

It is not a de Polignac number, because 1443412221985 - 2¹ = 1443412221983 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1443412221983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 887805 + ... + 1917034.

It is an arithmetic number, because the mean of its divisors is an integer number (113974673400).

Almost surely, 2^{1443412221985} is an apocalyptic number.

It is an amenable number.

1443412221985 is a deficient number, since it is larger than the sum of its proper divisors (380182552415).

1443412221985 is a wasteful number, since it uses less digits than its factorization.

1443412221985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2810280.

The product of its digits is 552960, while the sum is 46.

The spelling of 1443412221985 in words is "one trillion, four hundred forty-three billion, four hundred twelve million, two hundred twenty-one thousand, nine hundred eighty-five".