5418946409 has 4 divisors (see below), whose sum is σ = 5605806660. Its totient is φ = 5232086160.

The previous prime is 5418946397. The next prime is 5418946411. The reversal of 5418946409 is 9046498145.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9046498145 = 5 ⋅1809299629.

It can be written as a sum of positive squares in 2 ways, for example, as 3705400384 + 1713546025 = 60872^2 + 41395^2 .

It is a cyclic number.

It is not a de Polignac number, because 5418946409 - 2¹² = 5418942313 is a prime.

It is a super-2 number, since 2×5418946409² = 58729960367227990562, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5478946409) 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 in 3 ways as a sum of consecutive naturals, for example, 93430082 + ... + 93430139.

It is an arithmetic number, because the mean of its divisors is an integer number (1401451665).

Almost surely, 2^5418946409 is an apocalyptic number.

It is an amenable number.

5418946409 is a deficient number, since it is larger than the sum of its proper divisors (186860251).

5418946409 is a wasteful number, since it uses less digits than its factorization.

5418946409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186860250.

The product of its (nonzero) digits is 1244160, while the sum is 50.

The square root of 5418946409 is about 73613.4933894595. The cubic root of 5418946409 is about 1756.4600862749.

The spelling of 5418946409 in words is "five billion, four hundred eighteen million, nine hundred forty-six thousand, four hundred nine".