17104394036557 has 4 divisors (see below), whose sum is σ = 17106507524700. Its totient is φ = 17102280548416.

The previous prime is 17104394036549. The next prime is 17104394036603. The reversal of 17104394036557 is 75563049340171.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2413815893316 + 14690578143241 = 1553646^2 + 3832829^2 .

It is a cyclic number.

It is not a de Polignac number, because 17104394036557 - 2³ = 17104394036549 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 17104394036498 and 17104394036507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (17104394036537) 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, 1056731932 + ... + 1056748117.

It is an arithmetic number, because the mean of its divisors is an integer number (4276626881175).

Almost surely, 2^{17104394036557} is an apocalyptic number.

It is an amenable number.

17104394036557 is a deficient number, since it is larger than the sum of its proper divisors (2113488143).

17104394036557 is an equidigital number, since it uses as much as digits as its factorization.

17104394036557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2113488142.

The product of its (nonzero) digits is 9525600, while the sum is 55.

The spelling of 17104394036557 in words is "seventeen trillion, one hundred four billion, three hundred ninety-four million, thirty-six thousand, five hundred fifty-seven".