1444344143993 has 2 divisors, whose sum is σ = 1444344143994. Its totient is φ = 1444344143992.

The previous prime is 1444344143981. The next prime is 1444344144077. The reversal of 1444344143993 is 3993414434441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1359189900649 + 85154243344 = 1165843^2 + 291812^2 .

It is a cyclic number.

It is not a de Polignac number, because 1444344143993 - 2⁶ = 1444344143929 is a prime.

It is a super-2 number, since 2×1444344143993² (a number of 25 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1444344143923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 722172071996 + 722172071997.

It is an arithmetic number, because the mean of its divisors is an integer number (722172071997).

Almost surely, 2^{1444344143993} is an apocalyptic number.

It is an amenable number.

1444344143993 is a deficient number, since it is larger than the sum of its proper divisors (1).

1444344143993 is an equidigital number, since it uses as much as digits as its factorization.

1444344143993 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8957952, while the sum is 53.

The spelling of 1444344143993 in words is "one trillion, four hundred forty-four billion, three hundred forty-four million, one hundred forty-three thousand, nine hundred ninety-three".