6549065528649 has 16 divisors (see below), whose sum is σ = 9980104135680. Its totient is φ = 3742107267600.

The previous prime is 6549065528639. The next prime is 6549065528651. The reversal of 6549065528649 is 9468255609456.

6549065528649 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-6549065528649 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6549065528639) 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, 8622439 + ... + 9351180.

It is an arithmetic number, because the mean of its divisors is an integer number (623756508480).

Almost surely, 2^{6549065528649} is an apocalyptic number.

It is an amenable number.

6549065528649 is a deficient number, since it is larger than the sum of its proper divisors (3431038607031).

6549065528649 is a wasteful number, since it uses less digits than its factorization.

6549065528649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17990980.

The product of its (nonzero) digits is 559872000, while the sum is 69.

The spelling of 6549065528649 in words is "six trillion, five hundred forty-nine billion, sixty-five million, five hundred twenty-eight thousand, six hundred forty-nine".