17928552179017 has 2 divisors, whose sum is σ = 17928552179018. Its totient is φ = 17928552179016.

The previous prime is 17928552179011. The next prime is 17928552179039. The reversal of 17928552179017 is 71097125582971.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11881974456576 + 6046577722441 = 3447024^2 + 2458979^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-17928552179017 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 17928552179017.

It is not a weakly prime, because it can be changed into another prime (17928552179011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8964276089508 + 8964276089509.

It is an arithmetic number, because the mean of its divisors is an integer number (8964276089509).

Almost surely, 2^{17928552179017} is an apocalyptic number.

It is an amenable number.

17928552179017 is a deficient number, since it is larger than the sum of its proper divisors (1).

17928552179017 is an equidigital number, since it uses as much as digits as its factorization.

17928552179017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22226400, while the sum is 64.

The spelling of 17928552179017 in words is "seventeen trillion, nine hundred twenty-eight billion, five hundred fifty-two million, one hundred seventy-nine thousand, seventeen".