17078087893 has 2 divisors, whose sum is σ = 17078087894. Its totient is φ = 17078087892.

The previous prime is 17078087827. The next prime is 17078087911. The reversal of 17078087893 is 39878087071.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16649515089 + 428572804 = 129033^2 + 20702^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-17078087893 is a prime.

It is a super-2 number, since 2×17078087893² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (17078087093) 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, 8539043946 + 8539043947.

It is an arithmetic number, because the mean of its divisors is an integer number (8539043947).

Almost surely, 2^17078087893 is an apocalyptic number.

It is an amenable number.

17078087893 is a deficient number, since it is larger than the sum of its proper divisors (1).

17078087893 is an equidigital number, since it uses as much as digits as its factorization.

17078087893 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4741632, while the sum is 58.

The spelling of 17078087893 in words is "seventeen billion, seventy-eight million, eighty-seven thousand, eight hundred ninety-three".