6547226521647 has 32 divisors (see below), whose sum is σ = 10306014736384. Its totient is φ = 3617963884800.

The previous prime is 6547226521609. The next prime is 6547226521651. The reversal of 6547226521647 is 7461256227456.

It is a happy number.

It is not a de Polignac number, because 6547226521647 - 2¹¹ = 6547226519599 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6547226521547) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2742238 + ... + 4540299.

It is an arithmetic number, because the mean of its divisors is an integer number (322062960512).

Almost surely, 2^{6547226521647} is an apocalyptic number.

6547226521647 is a deficient number, since it is larger than the sum of its proper divisors (3758788214737).

6547226521647 is a wasteful number, since it uses less digits than its factorization.

6547226521647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7283959.

The product of its digits is 33868800, while the sum is 57.

The spelling of 6547226521647 in words is "six trillion, five hundred forty-seven billion, two hundred twenty-six million, five hundred twenty-one thousand, six hundred forty-seven".