6484775128 has 32 divisors (see below), whose sum is σ = 13273646400. Its totient is φ = 2951970048.

The previous prime is 6484775117. The next prime is 6484775159. The reversal of 6484775128 is 8215774846.

It is a Smith number, since the sum of its digits (52) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a congruent 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 7 ways as a sum of consecutive naturals, for example, 419488 + ... + 434671.

It is an arithmetic number, because the mean of its divisors is an integer number (414801450).

Almost surely, 2^6484775128 is an apocalyptic number.

It is an amenable number.

6484775128 is an abundant number, since it is smaller than the sum of its proper divisors (6788871272).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6484775128 is a wasteful number, since it uses less digits than its factorization.

6484775128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 854251 (or 854247 counting only the distinct ones).

The product of its digits is 3010560, while the sum is 52.

The square root of 6484775128 is about 80528.1014801665. The cubic root of 6484775128 is about 1864.7973365925.

The spelling of 6484775128 in words is "six billion, four hundred eighty-four million, seven hundred seventy-five thousand, one hundred twenty-eight".