2646752249 has 2 divisors, whose sum is σ = 2646752250. Its totient is φ = 2646752248.

The previous prime is 2646752239. The next prime is 2646752267. The reversal of 2646752249 is 9422576462.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1523497024 + 1123255225 = 39032^2 + 33515^2 .

It is a cyclic number.

It is not a de Polignac number, because 2646752249 - 2²⁰ = 2645703673 is a prime.

It is not a weakly prime, because it can be changed into another prime (2646752239) 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, 1323376124 + 1323376125.

It is an arithmetic number, because the mean of its divisors is an integer number (1323376125).

Almost surely, 2^2646752249 is an apocalyptic number.

It is an amenable number.

2646752249 is a deficient number, since it is larger than the sum of its proper divisors (1).

2646752249 is an equidigital number, since it uses as much as digits as its factorization.

2646752249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1451520, while the sum is 47.

The square root of 2646752249 is about 51446.5960875936. The cubic root of 2646752249 is about 1383.2619483687.

The spelling of 2646752249 in words is "two billion, six hundred forty-six million, seven hundred fifty-two thousand, two hundred forty-nine".