6478864017 has 32 divisors (see below), whose sum is σ = 9200563200. Its totient is φ = 4043769408.

The previous prime is 6478863983. The next prime is 6478864019. The reversal of 6478864017 is 7104688746.

It is a happy number.

It is not a de Polignac number, because 6478864017 - 2⁷ = 6478863889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6478864019) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3103348 + ... + 3105434.

It is an arithmetic number, because the mean of its divisors is an integer number (287517600).

Almost surely, 2^6478864017 is an apocalyptic number.

It is an amenable number.

6478864017 is a deficient number, since it is larger than the sum of its proper divisors (2721699183).

6478864017 is a wasteful number, since it uses less digits than its factorization.

6478864017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2725.

The product of its (nonzero) digits is 1806336, while the sum is 51.

The square root of 6478864017 is about 80491.3909495916. The cubic root of 6478864017 is about 1864.2305538937.

The spelling of 6478864017 in words is "six billion, four hundred seventy-eight million, eight hundred sixty-four thousand, seventeen".