3281423561 has 16 divisors (see below), whose sum is σ = 3623347728. Its totient is φ = 2952422400.

The previous prime is 3281423549. The next prime is 3281423597. The reversal of 3281423561 is 1653241823.

It can be written as a sum of positive squares in 8 ways, for example, as 855270025 + 2426153536 = 29245^2 + 49256^2 .

It is a cyclic number.

It is not a de Polignac number, because 3281423561 - 2¹⁸ = 3281161417 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3281423531) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 787295 + ... + 791451.

It is an arithmetic number, because the mean of its divisors is an integer number (226459233).

Almost surely, 2^3281423561 is an apocalyptic number.

It is an amenable number.

3281423561 is a deficient number, since it is larger than the sum of its proper divisors (341924167).

3281423561 is a wasteful number, since it uses less digits than its factorization.

3281423561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5692.

The product of its digits is 34560, while the sum is 35.

The square root of 3281423561 is about 57283.7111315250. The cubic root of 3281423561 is about 1486.0066879330.

The spelling of 3281423561 in words is "three billion, two hundred eighty-one million, four hundred twenty-three thousand, five hundred sixty-one".