17042120653 has 2 divisors, whose sum is σ = 17042120654. Its totient is φ = 17042120652.

The previous prime is 17042120621. The next prime is 17042120663. The reversal of 17042120653 is 35602124071.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10691146404 + 6350974249 = 103398^2 + 79693^2 .

It is a cyclic number.

It is not a de Polignac number, because 17042120653 - 2⁵ = 17042120621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (17042120663) 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, 8521060326 + 8521060327.

It is an arithmetic number, because the mean of its divisors is an integer number (8521060327).

Almost surely, 2^17042120653 is an apocalyptic number.

It is an amenable number.

17042120653 is a deficient number, since it is larger than the sum of its proper divisors (1).

17042120653 is an equidigital number, since it uses as much as digits as its factorization.

17042120653 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10080, while the sum is 31.

The spelling of 17042120653 in words is "seventeen billion, forty-two million, one hundred twenty thousand, six hundred fifty-three".