2018326609 has 6 divisors (see below), whose sum is σ = 2185525446. Its totient is φ = 1863070560.

The previous prime is 2018326573. The next prime is 2018326631. The reversal of 2018326609 is 9066238102.

It can be written as a sum of positive squares in 3 ways, for example, as 126337600 + 1891989009 = 11240^2 + 43497^2 .

It is not a de Polignac number, because 2018326609 - 2⁷ = 2018326481 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2018326669) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5971212 + ... + 5971549.

It is an arithmetic number, because the mean of its divisors is an integer number (364254241).

Almost surely, 2^2018326609 is an apocalyptic number.

It is an amenable number.

2018326609 is a deficient number, since it is larger than the sum of its proper divisors (167198837).

2018326609 is a wasteful number, since it uses less digits than its factorization.

2018326609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11942787 (or 11942774 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 2018326609 is about 44925.7900208778. The cubic root of 2018326609 is about 1263.7577015885.

The spelling of 2018326609 in words is "two billion, eighteen million, three hundred twenty-six thousand, six hundred nine".