17011109428491 has 4 divisors (see below), whose sum is σ = 22681479237992. Its totient is φ = 11340739618992.

The previous prime is 17011109428463. The next prime is 17011109428519. The reversal of 17011109428491 is 19482490111071.

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

It is an interprime number because it is at equal distance from previous prime (17011109428463) and next prime (17011109428519).

It is not a de Polignac number, because 17011109428491 - 2⁶ = 17011109428427 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 17011109428491.

It is not an unprimeable number, because it can be changed into a prime (17011109478491) 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, 2835184904746 + ... + 2835184904751.

It is an arithmetic number, because the mean of its divisors is an integer number (5670369809498).

Almost surely, 2^{17011109428491} is an apocalyptic number.

17011109428491 is a deficient number, since it is larger than the sum of its proper divisors (5670369809501).

17011109428491 is an equidigital number, since it uses as much as digits as its factorization.

17011109428491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5670369809500.

The product of its (nonzero) digits is 145152, while the sum is 48.

The spelling of 17011109428491 in words is "seventeen trillion, eleven billion, one hundred nine million, four hundred twenty-eight thousand, four hundred ninety-one".