4121840648 has 8 divisors (see below), whose sum is σ = 7728451230. Its totient is φ = 2060920320.

The previous prime is 4121840641. The next prime is 4121840669. The reversal of 4121840648 is 8460481214.

It can be written as a sum of positive squares in only one way, i.e., 2851773604 + 1270067044 = 53402^2 + 35638^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-3 number, since 3×4121840648³ (a number of 30 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (4121840641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 257615033 + ... + 257615048.

Almost surely, 2^4121840648 is an apocalyptic number.

It is an amenable number.

4121840648 is a deficient number, since it is larger than the sum of its proper divisors (3606610582).

4121840648 is a wasteful number, since it uses less digits than its factorization.

4121840648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515230087 (or 515230083 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 38.

The square root of 4121840648 is about 64201.5626601098. The cubic root of 4121840648 is about 1603.3576167856.

The spelling of 4121840648 in words is "four billion, one hundred twenty-one million, eight hundred forty thousand, six hundred forty-eight".