5618744309 has 8 divisors (see below), whose sum is σ = 5632769688. Its totient is φ = 5604733440.

The previous prime is 5618744291. The next prime is 5618744321. The reversal of 5618744309 is 9034478165.

It can be written as a sum of positive squares in 4 ways, for example, as 2167181809 + 3451562500 = 46553^2 + 58750^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5618744309 - 2¹² = 5618740213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5618741309) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1305449 + ... + 1309745.

It is an arithmetic number, because the mean of its divisors is an integer number (704096211).

Almost surely, 2^5618744309 is an apocalyptic number.

It is an amenable number.

5618744309 is a deficient number, since it is larger than the sum of its proper divisors (14025379).

5618744309 is a wasteful number, since it uses less digits than its factorization.

5618744309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7255.

The product of its (nonzero) digits is 725760, while the sum is 47.

The square root of 5618744309 is about 74958.2837917198. The cubic root of 5618744309 is about 1777.7871239759.

The spelling of 5618744309 in words is "five billion, six hundred eighteen million, seven hundred forty-four thousand, three hundred nine".