1148843666857 has 2 divisors, whose sum is σ = 1148843666858. Its totient is φ = 1148843666856.

The previous prime is 1148843666833. The next prime is 1148843666891. The reversal of 1148843666857 is 7586663488411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1058519976336 + 90323690521 = 1028844^2 + 300539^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1148843666857 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1148843666792 and 1148843666801.

It is not a weakly prime, because it can be changed into another prime (1148843666557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 574421833428 + 574421833429.

It is an arithmetic number, because the mean of its divisors is an integer number (574421833429).

Almost surely, 2^{1148843666857} is an apocalyptic number.

It is an amenable number.

1148843666857 is a deficient number, since it is larger than the sum of its proper divisors (1).

1148843666857 is an equidigital number, since it uses as much as digits as its factorization.

1148843666857 is an evil number, because the sum of its binary digits is even.

The product of its digits is 185794560, while the sum is 67.

The spelling of 1148843666857 in words is "one trillion, one hundred forty-eight billion, eight hundred forty-three million, six hundred sixty-six thousand, eight hundred fifty-seven".