6528442047 has 12 divisors (see below), whose sum is σ = 9186839640. Its totient is φ = 4123225872.

The previous prime is 6528442043. The next prime is 6528442093. The reversal of 6528442047 is 7402448256.

It is a happy number.

It is not a de Polignac number, because 6528442047 - 2² = 6528442043 is a prime.

It is a super-2 number, since 2×6528442047² = 85241111122075100418, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6528442043) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3012972 + ... + 3015137.

It is an arithmetic number, because the mean of its divisors is an integer number (765569970).

Almost surely, 2^6528442047 is an apocalyptic number.

6528442047 is a deficient number, since it is larger than the sum of its proper divisors (2658397593).

6528442047 is a wasteful number, since it uses less digits than its factorization.

6528442047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6028150 (or 6028131 counting only the distinct ones).

The product of its (nonzero) digits is 430080, while the sum is 42.

The square root of 6528442047 is about 80798.7750340313. The cubic root of 6528442047 is about 1868.9736756207.

The spelling of 6528442047 in words is "six billion, five hundred twenty-eight million, four hundred forty-two thousand, forty-seven".