3280813803506 has 48 divisors (see below), whose sum is σ = 5183232836040. Its totient is φ = 1556527034880.

The previous prime is 3280813803493. The next prime is 3280813803511. The reversal of 3280813803506 is 6053083180823.

It can be written as a sum of positive squares in 12 ways, for example, as 456515084281 + 2824298719225 = 675659^2 + 1680565^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 419055200 + ... + 419063028.

Almost surely, 2^{3280813803506} is an apocalyptic number.

3280813803506 is a deficient number, since it is larger than the sum of its proper divisors (1902419032534).

3280813803506 is a wasteful number, since it uses less digits than its factorization.

3280813803506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11679 (or 11642 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 47.

The spelling of 3280813803506 in words is "three trillion, two hundred eighty billion, eight hundred thirteen million, eight hundred three thousand, five hundred six".