6465563485 has 16 divisors (see below), whose sum is σ = 8448652800. Its totient is φ = 4731241536.

The previous prime is 6465563479. The next prime is 6465563551. The reversal of 6465563485 is 5843655646.

It is a cyclic number.

It is not a de Polignac number, because 6465563485 - 2⁹ = 6465562973 is a prime.

It is a super-2 number, since 2×6465563485² = 83607022357130690450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1170669 + ... + 1176178.

It is an arithmetic number, because the mean of its divisors is an integer number (528040800).

Almost surely, 2^6465563485 is an apocalyptic number.

It is an amenable number.

6465563485 is a deficient number, since it is larger than the sum of its proper divisors (1983089315).

6465563485 is a wasteful number, since it uses less digits than its factorization.

6465563485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2346900.

The product of its digits is 10368000, while the sum is 52.

The square root of 6465563485 is about 80408.7276668397. The cubic root of 6465563485 is about 1862.9539800511.

The spelling of 6465563485 in words is "six billion, four hundred sixty-five million, five hundred sixty-three thousand, four hundred eighty-five".