6511828216 has 8 divisors (see below), whose sum is σ = 12209677920. Its totient is φ = 3255914104.

The previous prime is 6511828097. The next prime is 6511828217. The reversal of 6511828216 is 6128281156.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6511828217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 406989256 + ... + 406989271.

It is an arithmetic number, because the mean of its divisors is an integer number (1526209740).

Almost surely, 2^6511828216 is an apocalyptic number.

It is an amenable number.

6511828216 is a deficient number, since it is larger than the sum of its proper divisors (5697849704).

6511828216 is a wasteful number, since it uses less digits than its factorization.

6511828216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 813978533 (or 813978529 counting only the distinct ones).

The product of its digits is 46080, while the sum is 40.

The square root of 6511828216 is about 80695.8996232151. The cubic root of 6511828216 is about 1867.3869167566.

The spelling of 6511828216 in words is "six billion, five hundred eleven million, eight hundred twenty-eight thousand, two hundred sixteen".