2043937557559 has 2 divisors, whose sum is σ = 2043937557560. Its totient is φ = 2043937557558.

The previous prime is 2043937557539. The next prime is 2043937557601. The reversal of 2043937557559 is 9557557393402.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2043937557559 - 2³⁹ = 1494181743671 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2043937557559.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2043937557539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1021968778779 + 1021968778780.

It is an arithmetic number, because the mean of its divisors is an integer number (1021968778780).

Almost surely, 2^{2043937557559} is an apocalyptic number.

2043937557559 is a deficient number, since it is larger than the sum of its proper divisors (1).

2043937557559 is an equidigital number, since it uses as much as digits as its factorization.

2043937557559 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 178605000, while the sum is 64.

The spelling of 2043937557559 in words is "two trillion, forty-three billion, nine hundred thirty-seven million, five hundred fifty-seven thousand, five hundred fifty-nine".