6478606805 has 24 divisors (see below), whose sum is σ = 8690220000. Its totient is φ = 4631828960.

The previous prime is 6478606777. The next prime is 6478606843. The reversal of 6478606805 is 5086068746.

It is a happy number.

It is not a de Polignac number, because 6478606805 - 2⁸ = 6478606549 is a prime.

It is a super-3 number, since 3×6478606805³ (a number of 30 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 55055 + ... + 126444.

It is an arithmetic number, because the mean of its divisors is an integer number (362092500).

Almost surely, 2^6478606805 is an apocalyptic number.

It is an amenable number.

6478606805 is a deficient number, since it is larger than the sum of its proper divisors (2211613195).

6478606805 is a wasteful number, since it uses less digits than its factorization.

6478606805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181585 (or 181574 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 50.

The square root of 6478606805 is about 80489.7931727992. The cubic root of 6478606805 is about 1864.2058834775.

The spelling of 6478606805 in words is "six billion, four hundred seventy-eight million, six hundred six thousand, eight hundred five".