17118791461 has 4 divisors (see below), whose sum is σ = 18125779212. Its totient is φ = 16111803712.

The previous prime is 17118791429. The next prime is 17118791483. The reversal of 17118791461 is 16419781171.

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

It can be written as a sum of positive squares in 2 ways, for example, as 5585320225 + 11533471236 = 74735^2 + 107394^2 .

It is a cyclic number.

It is not a de Polignac number, because 17118791461 - 2⁵ = 17118791429 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 (17118791491) 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, 503493850 + ... + 503493883.

It is an arithmetic number, because the mean of its divisors is an integer number (4531444803).

Almost surely, 2^17118791461 is an apocalyptic number.

It is an amenable number.

17118791461 is a deficient number, since it is larger than the sum of its proper divisors (1006987751).

17118791461 is a wasteful number, since it uses less digits than its factorization.

17118791461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1006987750.

The product of its digits is 84672, while the sum is 46.

The spelling of 17118791461 in words is "seventeen billion, one hundred eighteen million, seven hundred ninety-one thousand, four hundred sixty-one".