17117672947 has 2 divisors, whose sum is σ = 17117672948. Its totient is φ = 17117672946.

The previous prime is 17117672921. The next prime is 17117672981. The reversal of 17117672947 is 74927671171.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-17117672947 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 17117672894 and 17117672903.

It is not a weakly prime, because it can be changed into another prime (17117672917) 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, 8558836473 + 8558836474.

It is an arithmetic number, because the mean of its divisors is an integer number (8558836474).

Almost surely, 2^17117672947 is an apocalyptic number.

17117672947 is a deficient number, since it is larger than the sum of its proper divisors (1).

17117672947 is an equidigital number, since it uses as much as digits as its factorization.

17117672947 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1037232, while the sum is 52.

The spelling of 17117672947 in words is "seventeen billion, one hundred seventeen million, six hundred seventy-two thousand, nine hundred forty-seven".