5171661717 has 12 divisors (see below), whose sum is σ = 7086957696. Its totient is φ = 3354588720.

The previous prime is 5171661673. The next prime is 5171661739. The reversal of 5171661717 is 7171661715.

It is not a de Polignac number, because 5171661717 - 2¹⁴ = 5171645333 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5171661017) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 625509 + ... + 633722.

It is an arithmetic number, because the mean of its divisors is an integer number (590579808).

Almost surely, 2^5171661717 is an apocalyptic number.

It is an amenable number.

5171661717 is a deficient number, since it is larger than the sum of its proper divisors (1915295979).

5171661717 is a wasteful number, since it uses less digits than its factorization.

5171661717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1259308 (or 1259271 counting only the distinct ones).

The product of its digits is 61740, while the sum is 42.

The square root of 5171661717 is about 71914.2664358054. The cubic root of 5171661717 is about 1729.3253316111.

The spelling of 5171661717 in words is "five billion, one hundred seventy-one million, six hundred sixty-one thousand, seven hundred seventeen".