4981864866 has 64 divisors (see below), whose sum is σ = 11471569920. Its totient is φ = 1426455360.

The previous prime is 4981864831. The next prime is 4981864871. The reversal of 4981864866 is 6684681894.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 492835 + ... + 502841.

It is an arithmetic number, because the mean of its divisors is an integer number (179243280).

Almost surely, 2^4981864866 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4981864866, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5735784960).

4981864866 is an abundant number, since it is smaller than the sum of its proper divisors (6489705054).

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

4981864866 is a wasteful number, since it uses less digits than its factorization.

4981864866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10439.

The product of its digits is 15925248, while the sum is 60.

The square root of 4981864866 is about 70582.3268672831. The cubic root of 4981864866 is about 1707.9060659564.

The spelling of 4981864866 in words is "four billion, nine hundred eighty-one million, eight hundred sixty-four thousand, eight hundred sixty-six".