2748783649 has 2 divisors, whose sum is σ = 2748783650. Its totient is φ = 2748783648.

The previous prime is 2748783641. The next prime is 2748783677. The reversal of 2748783649 is 9463878472.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2553483024 + 195300625 = 50532^2 + 13975^2 .

It is a cyclic number.

It is not a de Polignac number, because 2748783649 - 2³ = 2748783641 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2748783593 and 2748783602.

It is not a weakly prime, because it can be changed into another prime (2748783641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1374391824 + 1374391825.

It is an arithmetic number, because the mean of its divisors is an integer number (1374391825).

Almost surely, 2^2748783649 is an apocalyptic number.

It is an amenable number.

2748783649 is a deficient number, since it is larger than the sum of its proper divisors (1).

2748783649 is an equidigital number, since it uses as much as digits as its factorization.

2748783649 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16257024, while the sum is 58.

The square root of 2748783649 is about 52428.8436740693. The cubic root of 2748783649 is about 1400.8130734509.

The spelling of 2748783649 in words is "two billion, seven hundred forty-eight million, seven hundred eighty-three thousand, six hundred forty-nine".