5541842909 has 2 divisors, whose sum is σ = 5541842910. Its totient is φ = 5541842908.

The previous prime is 5541842861. The next prime is 5541842927. The reversal of 5541842909 is 9092481455.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5041426009 + 500416900 = 71003^2 + 22370^2 .

It is a cyclic number.

It is not a de Polignac number, because 5541842909 - 2²⁸ = 5273407453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5541845909) 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, 2770921454 + 2770921455.

It is an arithmetic number, because the mean of its divisors is an integer number (2770921455).

Almost surely, 2^5541842909 is an apocalyptic number.

It is an amenable number.

5541842909 is a deficient number, since it is larger than the sum of its proper divisors (1).

5541842909 is an equidigital number, since it uses as much as digits as its factorization.

5541842909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 518400, while the sum is 47.

The square root of 5541842909 is about 74443.5551878066. Note that the first 3 decimals coincide. The cubic root of 5541842909 is about 1769.6392286081.

The spelling of 5541842909 in words is "five billion, five hundred forty-one million, eight hundred forty-two thousand, nine hundred nine".