2646328049 has 2 divisors, whose sum is σ = 2646328050. Its totient is φ = 2646328048.

The previous prime is 2646328021. The next prime is 2646328063. The reversal of 2646328049 is 9408236462.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1798353649 + 847974400 = 42407^2 + 29120^2 .

It is a cyclic number.

It is not a de Polignac number, because 2646328049 - 2²⁸ = 2377892593 is a prime.

It is not a weakly prime, because it can be changed into another prime (2646328019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1323164024 + 1323164025.

It is an arithmetic number, because the mean of its divisors is an integer number (1323164025).

Almost surely, 2^2646328049 is an apocalyptic number.

It is an amenable number.

2646328049 is a deficient number, since it is larger than the sum of its proper divisors (1).

2646328049 is an equidigital number, since it uses as much as digits as its factorization.

2646328049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 497664, while the sum is 44.

The square root of 2646328049 is about 51442.4732006540. The cubic root of 2646328049 is about 1383.1880450822.

The spelling of 2646328049 in words is "two billion, six hundred forty-six million, three hundred twenty-eight thousand, forty-nine".