1248791667833 has 2 divisors, whose sum is σ = 1248791667834. Its totient is φ = 1248791667832.

The previous prime is 1248791667793. The next prime is 1248791667853. The reversal of 1248791667833 is 3387661978421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1154363294569 + 94428373264 = 1074413^2 + 307292^2 .

It is a cyclic number.

It is not a de Polignac number, because 1248791667833 - 2³⁰ = 1247717926009 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1248791667833.

It is not a weakly prime, because it can be changed into another prime (1248791667853) 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, 624395833916 + 624395833917.

It is an arithmetic number, because the mean of its divisors is an integer number (624395833917).

Almost surely, 2^{1248791667833} is an apocalyptic number.

It is an amenable number.

1248791667833 is a deficient number, since it is larger than the sum of its proper divisors (1).

1248791667833 is an equidigital number, since it uses as much as digits as its factorization.

1248791667833 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 73156608, while the sum is 65.

The spelling of 1248791667833 in words is "one trillion, two hundred forty-eight billion, seven hundred ninety-one million, six hundred sixty-seven thousand, eight hundred thirty-three".