5009991859 has 4 divisors (see below), whose sum is σ = 5227817616. Its totient is φ = 4792166104.

The previous prime is 5009991829. The next prime is 5009991869. The reversal of 5009991859 is 9581999005.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 5009991859 - 2¹⁷ = 5009860787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5009991829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108912844 + ... + 108912889.

It is an arithmetic number, because the mean of its divisors is an integer number (1306954404).

Almost surely, 2^5009991859 is an apocalyptic number.

5009991859 is a deficient number, since it is larger than the sum of its proper divisors (217825757).

5009991859 is a wasteful number, since it uses less digits than its factorization.

5009991859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217825756.

The product of its (nonzero) digits is 1312200, while the sum is 55.

The square root of 5009991859 is about 70781.2959686385. The cubic root of 5009991859 is about 1711.1142446691.

The spelling of 5009991859 in words is "five billion, nine million, nine hundred ninety-one thousand, eight hundred fifty-nine".