1290650716829 has 2 divisors, whose sum is σ = 1290650716830. Its totient is φ = 1290650716828.

The previous prime is 1290650716813. The next prime is 1290650716877. The reversal of 1290650716829 is 9286170560921.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 929107065604 + 361543651225 = 963902^2 + 601285^2 .

It is a cyclic number.

It is not a de Polignac number, because 1290650716829 - 2⁴ = 1290650716813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1290650716429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 645325358414 + 645325358415.

It is an arithmetic number, because the mean of its divisors is an integer number (645325358415).

Almost surely, 2^{1290650716829} is an apocalyptic number.

It is an amenable number.

1290650716829 is a deficient number, since it is larger than the sum of its proper divisors (1).

1290650716829 is an equidigital number, since it uses as much as digits as its factorization.

1290650716829 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3265920, while the sum is 56.

The spelling of 1290650716829 in words is "one trillion, two hundred ninety billion, six hundred fifty million, seven hundred sixteen thousand, eight hundred twenty-nine".