4878987892 has 48 divisors (see below), whose sum is σ = 8737621200. Its totient is φ = 2383460352.

The previous prime is 4878987881. The next prime is 4878987929. The reversal of 4878987892 is 2987898784.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 524176 + 4878463716 = 724^2 + 69846^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13979734 + ... + 13980082.

It is an arithmetic number, because the mean of its divisors is an integer number (182033775).

Almost surely, 2^4878987892 is an apocalyptic number.

It is an amenable number.

4878987892 is a deficient number, since it is larger than the sum of its proper divisors (3858633308).

4878987892 is a wasteful number, since it uses less digits than its factorization.

4878987892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 820 (or 818 counting only the distinct ones).

The product of its digits is 130056192, while the sum is 70.

The square root of 4878987892 is about 69849.7522687089. The cubic root of 4878987892 is about 1696.0679471154.

The spelling of 4878987892 in words is "four billion, eight hundred seventy-eight million, nine hundred eighty-seven thousand, eight hundred ninety-two".