6549065528639 has 2 divisors, whose sum is σ = 6549065528640. Its totient is φ = 6549065528638.

The previous prime is 6549065528557. The next prime is 6549065528651. The reversal of 6549065528639 is 9368255609456.

6549065528639 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6549065528639 - 2⁴⁰ = 5449553900863 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6549065528039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3274532764319 + 3274532764320.

It is an arithmetic number, because the mean of its divisors is an integer number (3274532764320).

Almost surely, 2^{6549065528639} is an apocalyptic number.

6549065528639 is a deficient number, since it is larger than the sum of its proper divisors (1).

6549065528639 is an equidigital number, since it uses as much as digits as its factorization.

6549065528639 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 419904000, while the sum is 68.

The spelling of 6549065528639 in words is "six trillion, five hundred forty-nine billion, sixty-five million, five hundred twenty-eight thousand, six hundred thirty-nine".