5047118809 has 2 divisors, whose sum is σ = 5047118810. Its totient is φ = 5047118808.

The previous prime is 5047118803. The next prime is 5047118917. The reversal of 5047118809 is 9088117405.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2583485584 + 2463633225 = 50828^2 + 49635^2 .

It is a cyclic number.

It is not a de Polignac number, because 5047118809 - 2³ = 5047118801 is a prime.

It is not a weakly prime, because it can be changed into another prime (5047118801) 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, 2523559404 + 2523559405.

It is an arithmetic number, because the mean of its divisors is an integer number (2523559405).

Almost surely, 2^5047118809 is an apocalyptic number.

It is an amenable number.

5047118809 is a deficient number, since it is larger than the sum of its proper divisors (1).

5047118809 is an equidigital number, since it uses as much as digits as its factorization.

5047118809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 80640, while the sum is 43.

The square root of 5047118809 is about 71043.0771363403. The cubic root of 5047118809 is about 1715.3306299849.

The spelling of 5047118809 in words is "five billion, forty-seven million, one hundred eighteen thousand, eight hundred nine".