6485478770 has 32 divisors (see below), whose sum is σ = 12244497408. Its totient is φ = 2470367808.

The previous prime is 6485478743. The next prime is 6485478793. The reversal of 6485478770 is 778745846.

It is a happy number.

It is a super-2 number, since 2×6485478770² = 84122869752241425800, which contains 22 as substring.

It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 169082 + ... + 203861.

It is an arithmetic number, because the mean of its divisors is an integer number (382640544).

Almost surely, 2^6485478770 is an apocalyptic number.

6485478770 is a deficient number, since it is larger than the sum of its proper divisors (5759018638).

6485478770 is a wasteful number, since it uses less digits than its factorization.

6485478770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373034.

The product of its (nonzero) digits is 10536960, while the sum is 56.

The square root of 6485478770 is about 80532.4702837309. The cubic root of 6485478770 is about 1864.8647818647.

The spelling of 6485478770 in words is "six billion, four hundred eighty-five million, four hundred seventy-eight thousand, seven hundred seventy".