3284278683947 has 4 divisors (see below), whose sum is σ = 3427073409360. Its totient is φ = 3141483958536.

The previous prime is 3284278683923. The next prime is 3284278683977. The reversal of 3284278683947 is 7493868724823.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3284278683947 - 2¹⁸ = 3284278421803 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3284278683977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71397362672 + ... + 71397362717.

It is an arithmetic number, because the mean of its divisors is an integer number (856768352340).

Almost surely, 2^{3284278683947} is an apocalyptic number.

3284278683947 is a deficient number, since it is larger than the sum of its proper divisors (142794725413).

3284278683947 is a wasteful number, since it uses less digits than its factorization.

3284278683947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142794725412.

The product of its digits is 780337152, while the sum is 71.

The spelling of 3284278683947 in words is "three trillion, two hundred eighty-four billion, two hundred seventy-eight million, six hundred eighty-three thousand, nine hundred forty-seven".