2605886449 has 2 divisors, whose sum is σ = 2605886450. Its totient is φ = 2605886448.

The previous prime is 2605886441. The next prime is 2605886477. The reversal of 2605886449 is 9446885062.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2602530225 + 3356224 = 51015^2 + 1832^2 .

It is a cyclic number.

It is not a de Polignac number, because 2605886449 - 2³ = 2605886441 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2605886396 and 2605886405.

It is not a weakly prime, because it can be changed into another prime (2605886441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1302943224 + 1302943225.

It is an arithmetic number, because the mean of its divisors is an integer number (1302943225).

Almost surely, 2^2605886449 is an apocalyptic number.

It is an amenable number.

2605886449 is a deficient number, since it is larger than the sum of its proper divisors (1).

2605886449 is an equidigital number, since it uses as much as digits as its factorization.

2605886449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3317760, while the sum is 52.

The square root of 2605886449 is about 51047.8838836636. The cubic root of 2605886449 is about 1376.1058121896.

The spelling of 2605886449 in words is "two billion, six hundred five million, eight hundred eighty-six thousand, four hundred forty-nine".