6549821082 has 48 divisors (see below), whose sum is σ = 16931517120. Its totient is φ = 1871376696.

The previous prime is 6549821077. The next prime is 6549821099. The reversal of 6549821082 is 2801289456.

6549821082 is a `hidden beast` number, since 6 + 549 + 8 + 21 + 0 + 82 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1235038 + ... + 1240329.

It is an arithmetic number, because the mean of its divisors is an integer number (352739940).

Almost surely, 2^6549821082 is an apocalyptic number.

6549821082 is an abundant number, since it is smaller than the sum of its proper divisors (10381696038).

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

6549821082 is a wasteful number, since it uses less digits than its factorization.

6549821082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2475392 (or 2475379 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 45.

The square root of 6549821082 is about 80930.9649145492. The cubic root of 6549821082 is about 1871.0115950427.

The spelling of 6549821082 in words is "six billion, five hundred forty-nine million, eight hundred twenty-one thousand, eighty-two".