47648021648 has 20 divisors (see below), whose sum is σ = 92661240060. Its totient is φ = 23735443584.

The previous prime is 47648021639. The next prime is 47648021669. The reversal of 47648021648 is 84612084674.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 12771712144 + 34876309504 = 113012^2 + 186752^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 47648021596 and 47648021605.

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 3 ways as a sum of consecutive naturals, for example, 5531015 + ... + 5539622.

It is an arithmetic number, because the mean of its divisors is an integer number (4633062003).

Almost surely, 2^47648021648 is an apocalyptic number.

It is an amenable number.

47648021648 is a deficient number, since it is larger than the sum of its proper divisors (45013218412).

47648021648 is a wasteful number, since it uses less digits than its factorization.

47648021648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11070914 (or 11070908 counting only the distinct ones).

The product of its (nonzero) digits is 2064384, while the sum is 50.

The spelling of 47648021648 in words is "forty-seven billion, six hundred forty-eight million, twenty-one thousand, six hundred forty-eight".