5118730409 has 4 divisors (see below), whose sum is σ = 5512478916. Its totient is φ = 4724981904.

The previous prime is 5118730381. The next prime is 5118730429. The reversal of 5118730409 is 9040378115.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9040378115 = 5 ⋅1808075623.

It can be written as a sum of positive squares in 2 ways, for example, as 3528954025 + 1589776384 = 59405^2 + 39872^2 .

It is a cyclic number.

It is not a de Polignac number, because 5118730409 - 2⁸ = 5118730153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5118730429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 196874234 + ... + 196874259.

It is an arithmetic number, because the mean of its divisors is an integer number (1378119729).

Almost surely, 2^5118730409 is an apocalyptic number.

It is an amenable number.

5118730409 is a deficient number, since it is larger than the sum of its proper divisors (393748507).

5118730409 is a wasteful number, since it uses less digits than its factorization.

5118730409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393748506.

The product of its (nonzero) digits is 30240, while the sum is 38.

The square root of 5118730409 is about 71545.3031931517. The cubic root of 5118730409 is about 1723.4052792647.

The spelling of 5118730409 in words is "five billion, one hundred eighteen million, seven hundred thirty thousand, four hundred nine".