2773886484665 has 4 divisors (see below), whose sum is σ = 3328663781604. Its totient is φ = 2219109187728.

The previous prime is 2773886484659. The next prime is 2773886484727. The reversal of 2773886484665 is 5664846883772.

2773886484665 is digitally balanced in base 3, 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.

It can be written as a sum of positive squares in 2 ways, for example, as 511220710009 + 2262665774656 = 714997^2 + 1504216^2 .

It is a cyclic number.

It is not a de Polignac number, because 2773886484665 - 2³⁸ = 2499008577721 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2773886484592 and 2773886484601.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 277388648462 + ... + 277388648471.

It is an arithmetic number, because the mean of its divisors is an integer number (832165945401).

Almost surely, 2^{2773886484665} is an apocalyptic number.

It is an amenable number.

2773886484665 is a deficient number, since it is larger than the sum of its proper divisors (554777296939).

2773886484665 is an equidigital number, since it uses as much as digits as its factorization.

2773886484665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 554777296938.

The product of its digits is 2601123840, while the sum is 74.

The spelling of 2773886484665 in words is "two trillion, seven hundred seventy-three billion, eight hundred eighty-six million, four hundred eighty-four thousand, six hundred sixty-five".