5119736665 has 8 divisors (see below), whose sum is σ = 6259602888. Its totient is φ = 4018510080.

The previous prime is 5119736639. The next prime is 5119736683. The reversal of 5119736665 is 5666379115.

It can be written as a sum of positive squares in 4 ways, for example, as 35904064 + 5083832601 = 5992^2 + 71301^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 5119736665 - 2¹³ = 5119728473 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9659616 + ... + 9660145.

It is an arithmetic number, because the mean of its divisors is an integer number (782450361).

Almost surely, 2^5119736665 is an apocalyptic number.

It is an amenable number.

5119736665 is a deficient number, since it is larger than the sum of its proper divisors (1139866223).

5119736665 is a wasteful number, since it uses less digits than its factorization.

5119736665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19319819.

The product of its digits is 1020600, while the sum is 49.

The square root of 5119736665 is about 71552.3351470796. The cubic root of 5119736665 is about 1723.5182026617.

The spelling of 5119736665 in words is "five billion, one hundred nineteen million, seven hundred thirty-six thousand, six hundred sixty-five".