259366266449 has 2 divisors, whose sum is σ = 259366266450. Its totient is φ = 259366266448.

The previous prime is 259366266409. The next prime is 259366266461. The reversal of 259366266449 is 944662663952.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 250132017424 + 9234249025 = 500132^2 + 96095^2 .

It is a cyclic number.

It is not a de Polignac number, because 259366266449 - 2⁸ = 259366266193 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 259366266391 and 259366266400.

It is not a weakly prime, because it can be changed into another prime (259366266409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129683133224 + 129683133225.

It is an arithmetic number, because the mean of its divisors is an integer number (129683133225).

Almost surely, 2^259366266449 is an apocalyptic number.

It is an amenable number.

259366266449 is a deficient number, since it is larger than the sum of its proper divisors (1).

259366266449 is an equidigital number, since it uses as much as digits as its factorization.

259366266449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 100776960, while the sum is 62.

The spelling of 259366266449 in words is "two hundred fifty-nine billion, three hundred sixty-six million, two hundred sixty-six thousand, four hundred forty-nine".