2773323649 has 4 divisors (see below), whose sum is σ = 2773833300. Its totient is φ = 2772814000.

The previous prime is 2773323559. The next prime is 2773323653. The reversal of 2773323649 is 9463233772.

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 2756775025 + 16548624 = 52505^2 + 4068^2 .

It is a cyclic number.

It is not a de Polignac number, because 2773323649 - 2¹¹ = 2773321601 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2773323599 and 2773323608.

It is not an unprimeable number, because it can be changed into a prime (2773324649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 246574 + ... + 257575.

It is an arithmetic number, because the mean of its divisors is an integer number (693458325).

Almost surely, 2^2773323649 is an apocalyptic number.

It is an amenable number.

2773323649 is a deficient number, since it is larger than the sum of its proper divisors (509651).

2773323649 is an equidigital number, since it uses as much as digits as its factorization.

2773323649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 509650.

The product of its digits is 1143072, while the sum is 46.

The square root of 2773323649 is about 52662.3551410303. The cubic root of 2773323649 is about 1404.9693553428.

The spelling of 2773323649 in words is "two billion, seven hundred seventy-three million, three hundred twenty-three thousand, six hundred forty-nine".