2718386455009 has 3 divisors (see below), whose sum is σ = 2718388103763. Its totient is φ = 2718384806256.

The previous prime is 2718386454989. The next prime is 2718386455039. The reversal of 2718386455009 is 9005546838172.

The square root of 2718386455009 is 1648753.

It is a perfect power (a square), and thus also a powerful number.

2718386455009 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 2535435213025 + 182951241984 = 1592305^2 + 427728^2 .

It is not a de Polignac number, because 2718386455009 - 2³¹ = 2716238971361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2718386455039) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 824377 + ... + 2473129.

It is an arithmetic number, because the mean of its divisors is an integer number (906129367921).

It is a 2-persistent number, because it is pandigital, and so is 2⋅2718386455009 = 5436772910018, but 3⋅2718386455009 = 8155159365027 is not.

Almost surely, 2^{2718386455009} is an apocalyptic number.

2718386455009 is the 1648753-rd square number.

2718386455009 is the 824377-th centered octagonal number.

It is an amenable number.

2718386455009 is a deficient number, since it is larger than the sum of its proper divisors (1648754).

2718386455009 is an frugal number, since it uses more digits than its factorization.

2718386455009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3297506 (or 1648753 counting only the distinct ones).

The product of its (nonzero) digits is 14515200, while the sum is 58.

The spelling of 2718386455009 in words is "two trillion, seven hundred eighteen billion, three hundred eighty-six million, four hundred fifty-five thousand, nine".