17918059253 has 2 divisors, whose sum is σ = 17918059254. Its totient is φ = 17918059252.

The previous prime is 17918059223. The next prime is 17918059309. The reversal of 17918059253 is 35295081971.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14674415044 + 3243644209 = 121138^2 + 56953^2 .

It is a cyclic number.

It is not a de Polignac number, because 17918059253 - 2⁶ = 17918059189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (17918059213) 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, 8959029626 + 8959029627.

It is an arithmetic number, because the mean of its divisors is an integer number (8959029627).

Almost surely, 2^17918059253 is an apocalyptic number.

It is an amenable number.

17918059253 is a deficient number, since it is larger than the sum of its proper divisors (1).

17918059253 is an equidigital number, since it uses as much as digits as its factorization.

17918059253 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 680400, while the sum is 50.

The spelling of 17918059253 in words is "seventeen billion, nine hundred eighteen million, fifty-nine thousand, two hundred fifty-three".