6486566865 has 8 divisors (see below), whose sum is σ = 10378507008. Its totient is φ = 3459502320.

The previous prime is 6486566861. The next prime is 6486566939. The reversal of 6486566865 is 5686656846.

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

It is not a de Polignac number, because 6486566865 - 2² = 6486566861 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6486566799 and 6486566808.

It is not an unprimeable number, because it can be changed into a prime (6486566861) 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, 216218881 + ... + 216218910.

It is an arithmetic number, because the mean of its divisors is an integer number (1297313376).

Almost surely, 2^6486566865 is an apocalyptic number.

It is an amenable number.

6486566865 is a deficient number, since it is larger than the sum of its proper divisors (3891940143).

6486566865 is a wasteful number, since it uses less digits than its factorization.

6486566865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432437799.

The product of its digits is 49766400, while the sum is 60.

The square root of 6486566865 is about 80539.2256295030. The cubic root of 6486566865 is about 1864.9690680013.

The spelling of 6486566865 in words is "six billion, four hundred eighty-six million, five hundred sixty-six thousand, eight hundred sixty-five".