6480509187 has 8 divisors (see below), whose sum is σ = 9016360704. Its totient is φ = 4132498568.

The previous prime is 6480509183. The next prime is 6480509197. The reversal of 6480509187 is 7819050846.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6480509187 - 2² = 6480509183 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6480509183) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46960143 + ... + 46960280.

It is an arithmetic number, because the mean of its divisors is an integer number (1127045088).

Almost surely, 2^6480509187 is an apocalyptic number.

6480509187 is a deficient number, since it is larger than the sum of its proper divisors (2535851517).

6480509187 is a wasteful number, since it uses less digits than its factorization.

6480509187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93920449.

The product of its (nonzero) digits is 483840, while the sum is 48.

The square root of 6480509187 is about 80501.6098410460. The cubic root of 6480509187 is about 1864.3883344661.

The spelling of 6480509187 in words is "six billion, four hundred eighty million, five hundred nine thousand, one hundred eighty-seven".