1248791667793 has 2 divisors, whose sum is σ = 1248791667794. Its totient is φ = 1248791667792.

The previous prime is 1248791667791. The next prime is 1248791667833. The reversal of 1248791667793 is 3977661978421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1089804459969 + 158987207824 = 1043937^2 + 398732^2 .

It is a cyclic number.

It is not a de Polignac number, because 1248791667793 - 2¹ = 1248791667791 is a prime.

Together with 1248791667791, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1248791667791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 624395833896 + 624395833897.

It is an arithmetic number, because the mean of its divisors is an integer number (624395833897).

Almost surely, 2^{1248791667793} is an apocalyptic number.

It is an amenable number.

1248791667793 is a deficient number, since it is larger than the sum of its proper divisors (1).

1248791667793 is an equidigital number, since it uses as much as digits as its factorization.

1248791667793 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 192036096, while the sum is 70.

The spelling of 1248791667793 in words is "one trillion, two hundred forty-eight billion, seven hundred ninety-one million, six hundred sixty-seven thousand, seven hundred ninety-three".