3128468812 has 24 divisors (see below), whose sum is σ = 6272258720. Its totient is φ = 1337489280.

The previous prime is 3128468803. The next prime is 3128468867. The reversal of 3128468812 is 2188648213.

It is a happy number.

3128468812 is digitally balanced in base 2, because in such base 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 7 ways as a sum of consecutive naturals, for example, 125139 + ... + 148042.

Almost surely, 2^3128468812 is an apocalyptic number.

It is an amenable number.

3128468812 is an abundant number, since it is smaller than the sum of its proper divisors (3143789908).

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

3128468812 is a wasteful number, since it uses less digits than its factorization.

3128468812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273601 (or 273599 counting only the distinct ones).

The product of its digits is 147456, while the sum is 43.

The square root of 3128468812 is about 55932.7168301344. The cubic root of 3128468812 is about 1462.5496220239.

The spelling of 3128468812 in words is "three billion, one hundred twenty-eight million, four hundred sixty-eight thousand, eight hundred twelve".