3278456916 has 72 divisors (see below), whose sum is σ = 9367051680. Its totient is φ = 887398848.

The previous prime is 3278456899. The next prime is 3278456939. The reversal of 3278456916 is 6196548723.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 135555 + ... + 157898.

It is an arithmetic number, because the mean of its divisors is an integer number (130097940).

Almost surely, 2^3278456916 is an apocalyptic number.

It is an amenable number.

3278456916 is an abundant number, since it is smaller than the sum of its proper divisors (6088594764).

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

3278456916 is a wasteful number, since it uses less digits than its factorization.

3278456916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293493 (or 293484 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 51.

The square root of 3278456916 is about 57257.8109606017. The cubic root of 3278456916 is about 1485.5587336212.

The spelling of 3278456916 in words is "three billion, two hundred seventy-eight million, four hundred fifty-six thousand, nine hundred sixteen".