2043444667673 has 2 divisors, whose sum is σ = 2043444667674. Its totient is φ = 2043444667672.

The previous prime is 2043444667609. The next prime is 2043444667679. The reversal of 2043444667673 is 3767664443402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2028664673344 + 14779994329 = 1424312^2 + 121573^2 .

It is a cyclic number.

It is not a de Polignac number, because 2043444667673 - 2⁶ = 2043444667609 is a prime.

It is a super-2 number, since 2×2043444667673² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2043444667679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1021722333836 + 1021722333837.

It is an arithmetic number, because the mean of its divisors is an integer number (1021722333837).

Almost surely, 2^{2043444667673} is an apocalyptic number.

It is an amenable number.

2043444667673 is a deficient number, since it is larger than the sum of its proper divisors (1).

2043444667673 is an equidigital number, since it uses as much as digits as its factorization.

2043444667673 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48771072, while the sum is 56.

The spelling of 2043444667673 in words is "two trillion, forty-three billion, four hundred forty-four million, six hundred sixty-seven thousand, six hundred seventy-three".