2678022049 has 2 divisors, whose sum is σ = 2678022050. Its totient is φ = 2678022048.

The previous prime is 2678022047. The next prime is 2678022073. The reversal of 2678022049 is 9402208762.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2619392400 + 58629649 = 51180^2 + 7657^2 .

It is a cyclic number.

It is not a de Polignac number, because 2678022049 - 2¹ = 2678022047 is a prime.

Together with 2678022047, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2678022047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1339011024 + 1339011025.

It is an arithmetic number, because the mean of its divisors is an integer number (1339011025).

Almost surely, 2^2678022049 is an apocalyptic number.

It is an amenable number.

2678022049 is a deficient number, since it is larger than the sum of its proper divisors (1).

2678022049 is an equidigital number, since it uses as much as digits as its factorization.

2678022049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 2678022049 is about 51749.6091676063. The cubic root of 2678022049 is about 1388.6881069689.

The spelling of 2678022049 in words is "two billion, six hundred seventy-eight million, twenty-two thousand, forty-nine".