5171547915 has 48 divisors (see below), whose sum is σ = 9253179936. Its totient is φ = 2670220800.

The previous prime is 5171547869. The next prime is 5171547923. The reversal of 5171547915 is 5197451715.

5171547915 is a `hidden beast` number, since 5 + 17 + 1 + 547 + 91 + 5 = 666.

It is not a de Polignac number, because 5171547915 - 2¹⁵ = 5171515147 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 230997 + ... + 252393.

It is an arithmetic number, because the mean of its divisors is an integer number (192774582).

Almost surely, 2^5171547915 is an apocalyptic number.

5171547915 is a deficient number, since it is larger than the sum of its proper divisors (4081632021).

5171547915 is a wasteful number, since it uses less digits than its factorization.

5171547915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21580 (or 21577 counting only the distinct ones).

The product of its digits is 220500, while the sum is 45.

The square root of 5171547915 is about 71913.4751976290. The cubic root of 5171547915 is about 1729.3126469631.

The spelling of 5171547915 in words is "five billion, one hundred seventy-one million, five hundred forty-seven thousand, nine hundred fifteen".