3283561278 has 24 divisors (see below), whose sum is σ = 7123761216. Its totient is φ = 1093077600.

The previous prime is 3283561249. The next prime is 3283561297. The reversal of 3283561278 is 8721653823.

3283561278 is a `hidden beast` number, since 3 + 2 + 83 + 561 + 2 + 7 + 8 = 666.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 106158 + ... + 133553.

It is an arithmetic number, because the mean of its divisors is an integer number (296823384).

Almost surely, 2^3283561278 is an apocalyptic number.

3283561278 is an abundant number, since it is smaller than the sum of its proper divisors (3840199938).

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

3283561278 is a wasteful number, since it uses less digits than its factorization.

3283561278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240480 (or 240477 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The square root of 3283561278 is about 57302.3671238807. The cubic root of 3283561278 is about 1486.3293093122.

The spelling of 3283561278 in words is "three billion, two hundred eighty-three million, five hundred sixty-one thousand, two hundred seventy-eight".