3128710668 has 48 divisors (see below), whose sum is σ = 7763626080. Its totient is φ = 977255424.

The previous prime is 3128710643. The next prime is 3128710691. The reversal of 3128710668 is 8660178213.

3128710668 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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, 13230 + ... + 80202.

It is an arithmetic number, because the mean of its divisors is an integer number (161742210).

Almost surely, 2^3128710668 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 3128710668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3881813040).

3128710668 is an abundant number, since it is smaller than the sum of its proper divisors (4634915412).

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

3128710668 is a wasteful number, since it uses less digits than its factorization.

3128710668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67226 (or 67224 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 42.

The square root of 3128710668 is about 55934.8788145644. The cubic root of 3128710668 is about 1462.5873100334.

The spelling of 3128710668 in words is "three billion, one hundred twenty-eight million, seven hundred ten thousand, six hundred sixty-eight".