5178520040 has 16 divisors (see below), whose sum is σ = 11651670180. Its totient is φ = 2071408000.

The previous prime is 5178520027. The next prime is 5178520069. The reversal of 5178520040 is 400258715.

It can be written as a sum of positive squares in 2 ways, for example, as 4966584676 + 211935364 = 70474^2 + 14558^2 .

It is a junction number, because it is equal to n+sod(n) for n = 5178519979 and 5178520006.

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 3 ways as a sum of consecutive naturals, for example, 64731461 + ... + 64731540.

Almost surely, 2^5178520040 is an apocalyptic number.

It is an amenable number.

5178520040 is an abundant number, since it is smaller than the sum of its proper divisors (6473150140).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5178520040 is a wasteful number, since it uses less digits than its factorization.

5178520040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129463012 (or 129463008 counting only the distinct ones).

The product of its (nonzero) digits is 11200, while the sum is 32.

The square root of 5178520040 is about 71961.9346599298. The cubic root of 5178520040 is about 1730.0894337140.

Adding to 5178520040 its reverse (400258715), we get a palindrome (5578778755).

The spelling of 5178520040 in words is "five billion, one hundred seventy-eight million, five hundred twenty thousand, forty".