6728447532 has 48 divisors (see below), whose sum is σ = 16146611712. Its totient is φ = 2179504320.

The previous prime is 6728447519. The next prime is 6728447533. The reversal of 6728447532 is 2357448276.

It is not an unprimeable number, because it can be changed into a prime (6728447533) 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, 68557 + ... + 134747.

It is an arithmetic number, because the mean of its divisors is an integer number (336387744).

Almost surely, 2^6728447532 is an apocalyptic number.

It is an amenable number.

6728447532 is an abundant number, since it is smaller than the sum of its proper divisors (9418164180).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6728447532 is a wasteful number, since it uses less digits than its factorization.

6728447532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66438 (or 66436 counting only the distinct ones).

The product of its digits is 2257920, while the sum is 48.

The square root of 6728447532 is about 82027.1146146200. The cubic root of 6728447532 is about 1887.8679925868.

The spelling of 6728447532 in words is "six billion, seven hundred twenty-eight million, four hundred forty-seven thousand, five hundred thirty-two".