3278343943168 has 66 divisors (see below), whose sum is σ = 7623443455026. Its totient is φ = 1405004525568.

The previous prime is 3278343943139. The next prime is 3278343943181. The reversal of 3278343943168 is 8613493438723.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 2432002822144 + 846341121024 = 1559488^2 + 919968^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 32618271 + ... + 32718622.

Almost surely, 2^{3278343943168} is an apocalyptic number.

It is an amenable number.

3278343943168 is an abundant number, since it is smaller than the sum of its proper divisors (4345099511858).

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

3278343943168 is an equidigital number, since it uses as much as digits as its factorization.

3278343943168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65336927 (or 65336902 counting only the distinct ones).

The product of its digits is 62705664, while the sum is 61.

The spelling of 3278343943168 in words is "three trillion, two hundred seventy-eight billion, three hundred forty-three million, nine hundred forty-three thousand, one hundred sixty-eight".