16868567021473 has 2 divisors, whose sum is σ = 16868567021474. Its totient is φ = 16868567021472.

The previous prime is 16868567021437. The next prime is 16868567021483. The reversal of 16868567021473 is 37412076586861.

Together with previous prime (16868567021437) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15157224259984 + 1711342761489 = 3893228^2 + 1308183^2 .

It is an emirp because it is prime and its reverse (37412076586861) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16868567021473 - 2¹³ = 16868567013281 is a prime.

It is not a weakly prime, because it can be changed into another prime (16868567021483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8434283510736 + 8434283510737.

It is an arithmetic number, because the mean of its divisors is an integer number (8434283510737).

Almost surely, 2^{16868567021473} is an apocalyptic number.

It is an amenable number.

16868567021473 is a deficient number, since it is larger than the sum of its proper divisors (1).

16868567021473 is an equidigital number, since it uses as much as digits as its factorization.

16868567021473 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 81285120, while the sum is 64.

The spelling of 16868567021473 in words is "sixteen trillion, eight hundred sixty-eight billion, five hundred sixty-seven million, twenty-one thousand, four hundred seventy-three".