2118539345 has 8 divisors (see below), whose sum is σ = 2737804776. Its totient is φ = 1564459776.

The previous prime is 2118539341. The next prime is 2118539363. The reversal of 2118539345 is 5439358112.

It can be written as a sum of positive squares in 4 ways, for example, as 1067089 + 2117472256 = 1033^2 + 46016^2 .

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 2118539345 - 2² = 2118539341 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2118539341) 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, 16296392 + ... + 16296521.

It is an arithmetic number, because the mean of its divisors is an integer number (342225597).

Almost surely, 2^2118539345 is an apocalyptic number.

It is an amenable number.

2118539345 is a deficient number, since it is larger than the sum of its proper divisors (619265431).

2118539345 is a wasteful number, since it uses less digits than its factorization.

2118539345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32592931.

The product of its digits is 129600, while the sum is 41.

The square root of 2118539345 is about 46027.5933001064. The cubic root of 2118539345 is about 1284.3365579076.

The spelling of 2118539345 in words is "two billion, one hundred eighteen million, five hundred thirty-nine thousand, three hundred forty-five".