2168001498281 has 2 divisors, whose sum is σ = 2168001498282. Its totient is φ = 2168001498280.

The previous prime is 2168001498251. The next prime is 2168001498301. The reversal of 2168001498281 is 1828941008612.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1885678240000 + 282323258281 = 1373200^2 + 531341^2 .

It is a cyclic number.

It is not a de Polignac number, because 2168001498281 - 2¹⁴ = 2168001481897 is a prime.

It is a super-2 number, since 2×2168001498281² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2168001498241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1084000749140 + 1084000749141.

It is an arithmetic number, because the mean of its divisors is an integer number (1084000749141).

Almost surely, 2^{2168001498281} is an apocalyptic number.

It is an amenable number.

2168001498281 is a deficient number, since it is larger than the sum of its proper divisors (1).

2168001498281 is an equidigital number, since it uses as much as digits as its factorization.

2168001498281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 442368, while the sum is 50.

The spelling of 2168001498281 in words is "two trillion, one hundred sixty-eight billion, one million, four hundred ninety-eight thousand, two hundred eighty-one".