6480537716 has 12 divisors (see below), whose sum is σ = 11647453188. Its totient is φ = 3152693952.

The previous prime is 6480537691. The next prime is 6480537737. The reversal of 6480537716 is 6177350846.

It can be written as a sum of positive squares in 2 ways, for example, as 4579228900 + 1901308816 = 67670^2 + 43604^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21893561 + ... + 21893856.

It is an arithmetic number, because the mean of its divisors is an integer number (970621099).

Almost surely, 2^6480537716 is an apocalyptic number.

It is an amenable number.

6480537716 is a deficient number, since it is larger than the sum of its proper divisors (5166915472).

6480537716 is a wasteful number, since it uses less digits than its factorization.

6480537716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43787458 (or 43787456 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 47.

The square root of 6480537716 is about 80501.7870360652. The cubic root of 6480537716 is about 1864.3910703137.

The spelling of 6480537716 in words is "six billion, four hundred eighty million, five hundred thirty-seven thousand, seven hundred sixteen".