6521628982 has 32 divisors (see below), whose sum is σ = 11204593920. Its totient is φ = 2819419680.

The previous prime is 6521628977. The next prime is 6521629007. The reversal of 6521628982 is 2898261256.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33538 + ... + 119029.

It is an arithmetic number, because the mean of its divisors is an integer number (350143560).

Almost surely, 2^6521628982 is an apocalyptic number.

6521628982 is a deficient number, since it is larger than the sum of its proper divisors (4682964938).

6521628982 is a wasteful number, since it uses less digits than its factorization.

6521628982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152676.

The product of its digits is 829440, while the sum is 49.

The square root of 6521628982 is about 80756.6033337213. The cubic root of 6521628982 is about 1868.3232973149.

The spelling of 6521628982 in words is "six billion, five hundred twenty-one million, six hundred twenty-eight thousand, nine hundred eighty-two".