3148640648 has 8 divisors (see below), whose sum is σ = 5903701230. Its totient is φ = 1574320320.

The previous prime is 3148640647. The next prime is 3148640653. The reversal of 3148640648 is 8460468413.

3148640648 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 1770894724 + 1377745924 = 42082^2 + 37118^2 .

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

It is a super-3 number, since 3×3148640648³ (a number of 29 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3148640599 and 3148640608.

It is not an unprimeable number, because it can be changed into a prime (3148640641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 196790033 + ... + 196790048.

Almost surely, 2^3148640648 is an apocalyptic number.

It is an amenable number.

3148640648 is a deficient number, since it is larger than the sum of its proper divisors (2755060582).

3148640648 is a wasteful number, since it uses less digits than its factorization.

3148640648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393580087 (or 393580083 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 44.

The square root of 3148640648 is about 56112.7494247074. The cubic root of 3148640648 is about 1465.6863139565.

The spelling of 3148640648 in words is "three billion, one hundred forty-eight million, six hundred forty thousand, six hundred forty-eight".