3968218548 has 54 divisors (see below), whose sum is σ = 11668457346. Its totient is φ = 1133776224.

The previous prime is 3968218531. The next prime is 3968218561. The reversal of 3968218548 is 8458128693.

3968218548 is a `hidden beast` number, since 3 + 9 + 6 + 82 + 18 + 548 = 666.

3968218548 is digitally balanced in base 2 and base 4, because in such bases 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., 3068938404 + 899280144 = 55398^2 + 29988^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3968218494 and 3968218503.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1123015 + ... + 1126542.

Almost surely, 2^3968218548 is an apocalyptic number.

It is an amenable number.

3968218548 is an abundant number, since it is smaller than the sum of its proper divisors (7700238798).

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

3968218548 is a wasteful number, since it uses less digits than its factorization.

3968218548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2249581 (or 2249569 counting only the distinct ones).

The product of its digits is 3317760, while the sum is 54.

The square root of 3968218548 is about 62993.7976946937. The cubic root of 3968218548 is about 1583.1857088391.

The spelling of 3968218548 in words is "three billion, nine hundred sixty-eight million, two hundred eighteen thousand, five hundred forty-eight".