1288341428449 has 2 divisors, whose sum is σ = 1288341428450. Its totient is φ = 1288341428448.

The previous prime is 1288341428441. The next prime is 1288341428501. The reversal of 1288341428449 is 9448241438821.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1006520595025 + 281820833424 = 1003255^2 + 530868^2 .

It is an emirp because it is prime and its reverse (9448241438821) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1288341428449 - 2³ = 1288341428441 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1288341428393 and 1288341428402.

It is not a weakly prime, because it can be changed into another prime (1288341428441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 644170714224 + 644170714225.

It is an arithmetic number, because the mean of its divisors is an integer number (644170714225).

Almost surely, 2^{1288341428449} is an apocalyptic number.

It is an amenable number.

1288341428449 is a deficient number, since it is larger than the sum of its proper divisors (1).

1288341428449 is an equidigital number, since it uses as much as digits as its factorization.

1288341428449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14155776, while the sum is 58.

The spelling of 1288341428449 in words is "one trillion, two hundred eighty-eight billion, three hundred forty-one million, four hundred twenty-eight thousand, four hundred forty-nine".