5178947709 has 24 divisors (see below), whose sum is σ = 7588948512. Its totient is φ = 3139456320.

The previous prime is 5178947707. The next prime is 5178947713. The reversal of 5178947709 is 9077498715.

It is not a de Polignac number, because 5178947709 - 2¹ = 5178947707 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5178947701) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 42262 + ... + 110199.

It is an arithmetic number, because the mean of its divisors is an integer number (316206188).

Almost surely, 2^5178947709 is an apocalyptic number.

It is an amenable number.

5178947709 is a deficient number, since it is larger than the sum of its proper divisors (2410000803).

5178947709 is a wasteful number, since it uses less digits than its factorization.

5178947709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152557 (or 152544 counting only the distinct ones).

The product of its (nonzero) digits is 4445280, while the sum is 57.

The square root of 5178947709 is about 71964.9060931785. The cubic root of 5178947709 is about 1730.1370589843.

The spelling of 5178947709 in words is "five billion, one hundred seventy-eight million, nine hundred forty-seven thousand, seven hundred nine".