3281378850056 has 8 divisors (see below), whose sum is σ = 6152585343870. Its totient is φ = 1640689425024.

The previous prime is 3281378850011. The next prime is 3281378850073. The reversal of 3281378850056 is 6500588731823.

It can be written as a sum of positive squares in only one way, i.e., 3271865968900 + 9512881156 = 1808830^2 + 97534^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 3281378849983 and 3281378850010.

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 as a sum of consecutive naturals, namely, 205086178121 + ... + 205086178136.

Almost surely, 2^{3281378850056} is an apocalyptic number.

It is an amenable number.

3281378850056 is a deficient number, since it is larger than the sum of its proper divisors (2871206493814).

3281378850056 is a wasteful number, since it uses less digits than its factorization.

3281378850056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410172356263 (or 410172356259 counting only the distinct ones).

The product of its (nonzero) digits is 9676800, while the sum is 56.

The spelling of 3281378850056 in words is "three trillion, two hundred eighty-one billion, three hundred seventy-eight million, eight hundred fifty thousand, fifty-six".