4378861548 has 18 divisors (see below), whose sum is σ = 11068789004. Its totient is φ = 1459620504.

The previous prime is 4378861523. The next prime is 4378861561. The reversal of 4378861548 is 8451688734.

4378861548 is a `hidden beast` number, since 4 + 37 + 8 + 8 + 61 + 548 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a junction number, because it is equal to n+sod(n) for n = 4378861494 and 4378861503.

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 5 ways as a sum of consecutive naturals, for example, 60817486 + ... + 60817557.

Almost surely, 2^4378861548 is an apocalyptic number.

It is an amenable number.

4378861548 is an abundant number, since it is smaller than the sum of its proper divisors (6689927456).

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

4378861548 is a wasteful number, since it uses less digits than its factorization.

4378861548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121635053 (or 121635048 counting only the distinct ones).

The product of its digits is 5160960, while the sum is 54.

The square root of 4378861548 is about 66172.9668973668. The cubic root of 4378861548 is about 1636.0142090018.

The spelling of 4378861548 in words is "four billion, three hundred seventy-eight million, eight hundred sixty-one thousand, five hundred forty-eight".