3261622320917 has 2 divisors, whose sum is σ = 3261622320918. Its totient is φ = 3261622320916.

The previous prime is 3261622320851. The next prime is 3261622320991. The reversal of 3261622320917 is 7190232261623.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3190989159556 + 70633161361 = 1786334^2 + 265769^2 .

It is a cyclic number.

It is not a de Polignac number, because 3261622320917 - 2²⁰ = 3261621272341 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3261622320617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1630811160458 + 1630811160459.

It is an arithmetic number, because the mean of its divisors is an integer number (1630811160459).

Almost surely, 2^{3261622320917} is an apocalyptic number.

It is an amenable number.

3261622320917 is a deficient number, since it is larger than the sum of its proper divisors (1).

3261622320917 is an equidigital number, since it uses as much as digits as its factorization.

3261622320917 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 326592, while the sum is 44.

The spelling of 3261622320917 in words is "three trillion, two hundred sixty-one billion, six hundred twenty-two million, three hundred twenty thousand, nine hundred seventeen".