3276711808561 has 27 divisors (see below), whose sum is σ = 3450934397547. Its totient is φ = 3111028850160.

The previous prime is 3276711808543. The next prime is 3276711808577. The reversal of 3276711808561 is 1658081176723.

The square root of 3276711808561 is 1810169.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 1781090430625 + 1495621377936 = 1334575^2 + 1222956^2 .

It is not a de Polignac number, because 3276711808561 - 2²⁷ = 3276577590833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3276711805561) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 8784749971 + ... + 8784750343.

Almost surely, 2^{3276711808561} is an apocalyptic number.

3276711808561 is the 1810169-th square number.

3276711808561 is the 905085-th centered octagonal number.

It is an amenable number.

3276711808561 is a deficient number, since it is larger than the sum of its proper divisors (174222588986).

3276711808561 is an frugal number, since it uses more digits than its factorization.

3276711808561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1214 (or 607 counting only the distinct ones).

The product of its (nonzero) digits is 3386880, while the sum is 55.

The spelling of 3276711808561 in words is "three trillion, two hundred seventy-six billion, seven hundred eleven million, eight hundred eight thousand, five hundred sixty-one".