17198117081 has 4 divisors (see below), whose sum is σ = 17204893200. Its totient is φ = 17191340964.

The previous prime is 17198117063. The next prime is 17198117107. The reversal of 17198117081 is 18071189171.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 17198117081 - 2²² = 17193922777 is a prime.

It is a super-2 number, since 2×17198117081² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (17198117011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3384251 + ... + 3389328.

It is an arithmetic number, because the mean of its divisors is an integer number (4301223300).

Almost surely, 2^17198117081 is an apocalyptic number.

It is an amenable number.

17198117081 is a deficient number, since it is larger than the sum of its proper divisors (6776119).

17198117081 is an equidigital number, since it uses as much as digits as its factorization.

17198117081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6776118.

The product of its (nonzero) digits is 28224, while the sum is 44.

The spelling of 17198117081 in words is "seventeen billion, one hundred ninety-eight million, one hundred seventeen thousand, eighty-one".