5179519665 has 12 divisors (see below), whose sum is σ = 8977834164. Its totient is φ = 2762410464.

The previous prime is 5179519619. The next prime is 5179519733. The reversal of 5179519665 is 5669159715.

5179519665 is a `hidden beast` number, since 51 + 79 + 519 + 6 + 6 + 5 = 666.

5179519665 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 4052977569 + 1126542096 = 63663^2 + 33564^2 .

It is not a de Polignac number, because 5179519665 - 2⁶ = 5179519601 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 57550174 + ... + 57550263.

It is an arithmetic number, because the mean of its divisors is an integer number (748152847).

Almost surely, 2^5179519665 is an apocalyptic number.

It is an amenable number.

5179519665 is a deficient number, since it is larger than the sum of its proper divisors (3798314499).

5179519665 is a wasteful number, since it uses less digits than its factorization.

5179519665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115100448 (or 115100445 counting only the distinct ones).

The product of its digits is 2551500, while the sum is 54.

The square root of 5179519665 is about 71968.8798370518. The cubic root of 5179519665 is about 1730.2007479742.

The spelling of 5179519665 in words is "five billion, one hundred seventy-nine million, five hundred nineteen thousand, six hundred sixty-five".