2644056043 has 2 divisors, whose sum is σ = 2644056044. Its totient is φ = 2644056042.

The previous prime is 2644055993. The next prime is 2644056047. The reversal of 2644056043 is 3406504462.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2644056043 - 2¹³ = 2644047851 is a prime.

It is not a weakly prime, because it can be changed into another prime (2644056047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1322028021 + 1322028022.

It is an arithmetic number, because the mean of its divisors is an integer number (1322028022).

Almost surely, 2^2644056043 is an apocalyptic number.

2644056043 is a deficient number, since it is larger than the sum of its proper divisors (1).

2644056043 is an equidigital number, since it uses as much as digits as its factorization.

2644056043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69120, while the sum is 34.

The square root of 2644056043 is about 51420.3854808577. The cubic root of 2644056043 is about 1382.7920861948.

The spelling of 2644056043 in words is "two billion, six hundred forty-four million, fifty-six thousand, forty-three".