6485478788 has 12 divisors (see below), whose sum is σ = 11372155200. Its totient is φ = 3236291592.

The previous prime is 6485478743. The next prime is 6485478793. The reversal of 6485478788 is 8878745846.

It is a super-2 number, since 2×6485478788² = 84122870219195897888, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1609688 + ... + 1613711.

It is an arithmetic number, because the mean of its divisors is an integer number (947679600).

Almost surely, 2^6485478788 is an apocalyptic number.

It is an amenable number.

6485478788 is a deficient number, since it is larger than the sum of its proper divisors (4886676412).

6485478788 is a wasteful number, since it uses less digits than its factorization.

6485478788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3223906 (or 3223904 counting only the distinct ones).

The product of its digits is 96337920, while the sum is 65.

The square root of 6485478788 is about 80532.4703954871. The cubic root of 6485478788 is about 1864.8647835899.

The spelling of 6485478788 in words is "six billion, four hundred eighty-five million, four hundred seventy-eight thousand, seven hundred eighty-eight".