4049059561 has 2 divisors, whose sum is σ = 4049059562. Its totient is φ = 4049059560.

The previous prime is 4049059559. The next prime is 4049059577. The reversal of 4049059561 is 1659509404.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3996641961 + 52417600 = 63219^2 + 7240^2 .

It is a cyclic number.

It is not a de Polignac number, because 4049059561 - 2¹ = 4049059559 is a prime.

Together with 4049059559, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (4049059501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2024529780 + 2024529781.

It is an arithmetic number, because the mean of its divisors is an integer number (2024529781).

Almost surely, 2^4049059561 is an apocalyptic number.

It is an amenable number.

4049059561 is a deficient number, since it is larger than the sum of its proper divisors (1).

4049059561 is an equidigital number, since it uses as much as digits as its factorization.

4049059561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 194400, while the sum is 43.

The square root of 4049059561 is about 63632.2210912050. The cubic root of 4049059561 is about 1593.8644657584.

The spelling of 4049059561 in words is "four billion, forty-nine million, fifty-nine thousand, five hundred sixty-one".