2783068072009 has 3 divisors (see below), whose sum is σ = 2783069740263. Its totient is φ = 2783066403756.

The previous prime is 2783068071997. The next prime is 2783068072049. The reversal of 2783068072009 is 9002708603872.

The square root of 2783068072009 is 1668253.

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

2783068072009 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., 2554610839225 + 228457232784 = 1598315^2 + 477972^2 .

It is not a de Polignac number, because 2783068072009 - 2¹¹ = 2783068069961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2783068072049) 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, 834127 + ... + 2502379.

It is an arithmetic number, because the mean of its divisors is an integer number (927689913421).

Almost surely, 2^{2783068072009} is an apocalyptic number.

2783068072009 is the 1668253-rd square number.

2783068072009 is the 834127-th centered octagonal number.

It is an amenable number.

2783068072009 is a deficient number, since it is larger than the sum of its proper divisors (1668254).

2783068072009 is an frugal number, since it uses more digits than its factorization.

2783068072009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3336506 (or 1668253 counting only the distinct ones).

The product of its (nonzero) digits is 2032128, while the sum is 52.

The spelling of 2783068072009 in words is "two trillion, seven hundred eighty-three billion, sixty-eight million, seventy-two thousand, nine".