4881981680 has 40 divisors (see below), whose sum is σ = 11716761984. Its totient is φ = 1889798400.

The previous prime is 4881981673. The next prime is 4881981719. The reversal of 4881981680 is 861891884.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 981791 + ... + 986750.

Almost surely, 2^4881981680 is an apocalyptic number.

4881981680 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4881981680 is an abundant number, since it is smaller than the sum of its proper divisors (6834780304).

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

4881981680 is a wasteful number, since it uses less digits than its factorization.

4881981680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1968585 (or 1968579 counting only the distinct ones).

The product of its (nonzero) digits is 884736, while the sum is 53.

The square root of 4881981680 is about 69871.1791799738. The cubic root of 4881981680 is about 1696.4147833696.

The spelling of 4881981680 in words is "four billion, eight hundred eighty-one million, nine hundred eighty-one thousand, six hundred eighty".