6480876321 has 12 divisors (see below), whose sum is σ = 9363130660. Its totient is φ = 4319723520.

The previous prime is 6480876317. The next prime is 6480876331. The reversal of 6480876321 is 1236780846.

6480876321 is a `hidden beast` number, since 6 + 4 + 8 + 0 + 8 + 7 + 632 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 3667634721 + 2813241600 = 60561^2 + 53040^2 .

It is not a de Polignac number, because 6480876321 - 2² = 6480876317 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6480876331) 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, 22240 + ... + 116001.

Almost surely, 2^6480876321 is an apocalyptic number.

It is an amenable number.

6480876321 is a deficient number, since it is larger than the sum of its proper divisors (2882254339).

6480876321 is a wasteful number, since it uses less digits than its factorization.

6480876321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143456 (or 143453 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The square root of 6480876321 is about 80503.8900985536. The cubic root of 6480876321 is about 1864.4235409291.

The spelling of 6480876321 in words is "six billion, four hundred eighty million, eight hundred seventy-six thousand, three hundred twenty-one".