6648631475 has 12 divisors (see below), whose sum is σ = 8272449696. Its totient is φ = 5300746080.

The previous prime is 6648631469. The next prime is 6648631489. The reversal of 6648631475 is 5741368466.

It is not a de Polignac number, because 6648631475 - 2²⁰ = 6647582899 is a prime.

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian 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 11 ways as a sum of consecutive naturals, for example, 446507 + ... + 461156.

It is an arithmetic number, because the mean of its divisors is an integer number (689370808).

Almost surely, 2^6648631475 is an apocalyptic number.

6648631475 is a deficient number, since it is larger than the sum of its proper divisors (1623818221).

6648631475 is a wasteful number, since it uses less digits than its factorization.

6648631475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 907966 (or 907961 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 50.

The square root of 6648631475 is about 81539.1407546094. The cubic root of 6648631475 is about 1880.3733484979.

The spelling of 6648631475 in words is "six billion, six hundred forty-eight million, six hundred thirty-one thousand, four hundred seventy-five".