2748281849 has 2 divisors, whose sum is σ = 2748281850. Its totient is φ = 2748281848.

The previous prime is 2748281821. The next prime is 2748281857. The reversal of 2748281849 is 9481828472.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2293739449 + 454542400 = 47893^2 + 21320^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2748281849 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2748281849.

It is not a weakly prime, because it can be changed into another prime (2748281749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1374140924 + 1374140925.

It is an arithmetic number, because the mean of its divisors is an integer number (1374140925).

Almost surely, 2^2748281849 is an apocalyptic number.

It is an amenable number.

2748281849 is a deficient number, since it is larger than the sum of its proper divisors (1).

2748281849 is an equidigital number, since it uses as much as digits as its factorization.

2748281849 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2064384, while the sum is 53.

The square root of 2748281849 is about 52424.0579219121. The cubic root of 2748281849 is about 1400.7278271664.

The spelling of 2748281849 in words is "two billion, seven hundred forty-eight million, two hundred eighty-one thousand, eight hundred forty-nine".