3128504064 has 144 divisors (see below), whose sum is σ = 9548259840. Its totient is φ = 890818560.

The previous prime is 3128504051. The next prime is 3128504077. The reversal of 3128504064 is 4604058213.

It is an interprime number because it is at equal distance from previous prime (3128504051) and next prime (3128504077).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1929174 + ... + 1930794.

It is an arithmetic number, because the mean of its divisors is an integer number (66307360).

Almost surely, 2^3128504064 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3128504064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4774129920).

3128504064 is an abundant number, since it is smaller than the sum of its proper divisors (6419755776).

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

3128504064 is a wasteful number, since it uses less digits than its factorization.

3128504064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2006 (or 1992 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 3128504064 is about 55933.0319578690. The cubic root of 3128504064 is about 1462.5551154041. Note that the first 3 decimals are identical.

The spelling of 3128504064 in words is "three billion, one hundred twenty-eight million, five hundred four thousand, sixty-four".