5136112809 has 24 divisors (see below), whose sum is σ = 7495230600. Its totient is φ = 3388884480.

The previous prime is 5136112801. The next prime is 5136112823. The reversal of 5136112809 is 9082116315.

5136112809 is a `hidden beast` number, since 5 + 13 + 611 + 28 + 0 + 9 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 174319209 + 4961793600 = 13203^2 + 70440^2 .

It is not a de Polignac number, because 5136112809 - 2³ = 5136112801 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5136112801) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1085569 + ... + 1090289.

It is an arithmetic number, because the mean of its divisors is an integer number (312301275).

Almost surely, 2^5136112809 is an apocalyptic number.

It is an amenable number.

5136112809 is a deficient number, since it is larger than the sum of its proper divisors (2359117791).

5136112809 is a wasteful number, since it uses less digits than its factorization.

5136112809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5945 (or 5942 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 5136112809 is about 71666.6785124021. The cubic root of 5136112809 is about 1725.3538792565.

The spelling of 5136112809 in words is "five billion, one hundred thirty-six million, one hundred twelve thousand, eight hundred nine".