17214058991 has 4 divisors (see below), whose sum is σ = 17300562000. Its totient is φ = 17127555984.

The previous prime is 17214058937. The next prime is 17214058997. The reversal of 17214058991 is 19985041271.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-17214058991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (17214058997) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43251206 + ... + 43251603.

It is an arithmetic number, because the mean of its divisors is an integer number (4325140500).

Almost surely, 2^17214058991 is an apocalyptic number.

17214058991 is a deficient number, since it is larger than the sum of its proper divisors (86503009).

17214058991 is an equidigital number, since it uses as much as digits as its factorization.

17214058991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86503008.

The product of its (nonzero) digits is 181440, while the sum is 47.

The spelling of 17214058991 in words is "seventeen billion, two hundred fourteen million, fifty-eight thousand, nine hundred ninety-one".