17281660426081 has 4 divisors (see below), whose sum is σ = 17281669875712. Its totient is φ = 17281650976452.

The previous prime is 17281660426057. The next prime is 17281660426091. The reversal of 17281660426081 is 18062406618271.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 17281660426081 - 2²¹ = 17281658328929 is a prime.

It is a super-2 number, since 2×17281660426081² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (17281660426091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1005825 + ... + 5964478.

It is an arithmetic number, because the mean of its divisors is an integer number (4320417468928).

Almost surely, 2^{17281660426081} is an apocalyptic number.

It is an amenable number.

17281660426081 is a deficient number, since it is larger than the sum of its proper divisors (9449631).

17281660426081 is an equidigital number, since it uses as much as digits as its factorization.

17281660426081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9449630.

The product of its (nonzero) digits is 1548288, while the sum is 52.

The spelling of 17281660426081 in words is "seventeen trillion, two hundred eighty-one billion, six hundred sixty million, four hundred twenty-six thousand, eighty-one".