17426087164561 has 2 divisors, whose sum is σ = 17426087164562. Its totient is φ = 17426087164560.

The previous prime is 17426087164559. The next prime is 17426087164583. The reversal of 17426087164561 is 16546178062471.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16379058881025 + 1047028283536 = 4047105^2 + 1023244^2 .

It is an emirp because it is prime and its reverse (16546178062471) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 17426087164561 - 2¹ = 17426087164559 is a prime.

Together with 17426087164559, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 17426087164496 and 17426087164505.

It is not a weakly prime, because it can be changed into another prime (17426087164261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8713043582280 + 8713043582281.

It is an arithmetic number, because the mean of its divisors is an integer number (8713043582281).

Almost surely, 2^{17426087164561} is an apocalyptic number.

It is an amenable number.

17426087164561 is a deficient number, since it is larger than the sum of its proper divisors (1).

17426087164561 is an equidigital number, since it uses as much as digits as its factorization.

17426087164561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13547520, while the sum is 58.

The spelling of 17426087164561 in words is "seventeen trillion, four hundred twenty-six billion, eighty-seven million, one hundred sixty-four thousand, five hundred sixty-one".