5171649605 has 18 divisors (see below), whose sum is σ = 6433158966. Its totient is φ = 3991051456.

The previous prime is 5171649599. The next prime is 5171649631. The reversal of 5171649605 is 5069461715.

It can be written as a sum of positive squares in 9 ways, for example, as 4095744004 + 1075905601 = 63998^2 + 32801^2 .

It is not a de Polignac number, because 5171649605 - 2²⁴ = 5154872389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 4662791 + ... + 4663899.

Almost surely, 2^5171649605 is an apocalyptic number.

It is an amenable number.

5171649605 is a deficient number, since it is larger than the sum of its proper divisors (1261509361).

5171649605 is an frugal number, since it uses more digits than its factorization.

5171649605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2281 (or 1143 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 44.

The square root of 5171649605 is about 71914.1822243707. The cubic root of 5171649605 is about 1729.3239815869.

The spelling of 5171649605 in words is "five billion, one hundred seventy-one million, six hundred forty-nine thousand, six hundred five".