5128810040 has 16 divisors (see below), whose sum is σ = 11539822680. Its totient is φ = 2051524000.

The previous prime is 5128810039. The next prime is 5128810117. The reversal of 5128810040 is 400188215.

It is a junction number, because it is equal to n+sod(n) for n = 5128809985 and 5128810012.

It is a congruent 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 3 ways as a sum of consecutive naturals, for example, 64110086 + ... + 64110165.

Almost surely, 2^5128810040 is an apocalyptic number.

It is an amenable number.

5128810040 is an abundant number, since it is smaller than the sum of its proper divisors (6411012640).

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

5128810040 is a wasteful number, since it uses less digits than its factorization.

5128810040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128220262 (or 128220258 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 29.

The square root of 5128810040 is about 71615.7108461544. The cubic root of 5128810040 is about 1724.5357613719.

Adding to 5128810040 its reverse (400188215), we get a palindrome (5528998255).

The spelling of 5128810040 in words is "five billion, one hundred twenty-eight million, eight hundred ten thousand, forty".