3278312128 has 56 divisors (see below), whose sum is σ = 8006661152. Its totient is φ = 1296912384.

The previous prime is 3278312123. The next prime is 3278312129. The reversal of 3278312128 is 8212138723.

It is a tau number, because it is divible by the number of its divisors (56).

It is not an unprimeable number, because it can be changed into a prime (3278312123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 275625 + ... + 287272.

It is an arithmetic number, because the mean of its divisors is an integer number (142976092).

Almost surely, 2^3278312128 is an apocalyptic number.

It is an amenable number.

3278312128 is an abundant number, since it is smaller than the sum of its proper divisors (4728349024).

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

3278312128 is a wasteful number, since it uses less digits than its factorization.

3278312128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 562929 (or 562919 counting only the distinct ones).

The product of its digits is 32256, while the sum is 37.

The square root of 3278312128 is about 57256.5465951274. The cubic root of 3278312128 is about 1485.5368641614.

The spelling of 3278312128 in words is "three billion, two hundred seventy-eight million, three hundred twelve thousand, one hundred twenty-eight".