4989549784 has 8 divisors (see below), whose sum is σ = 9355405860. Its totient is φ = 2494774888.

The previous prime is 4989549709. The next prime is 4989549787. The reversal of 4989549784 is 4879459894.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4989549787) by changing a digit.

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 as a sum of consecutive naturals, namely, 311846854 + ... + 311846869.

Almost surely, 2^4989549784 is an apocalyptic number.

It is an amenable number.

4989549784 is a deficient number, since it is larger than the sum of its proper divisors (4365856076).

4989549784 is a wasteful number, since it uses less digits than its factorization.

4989549784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 623693729 (or 623693725 counting only the distinct ones).

The product of its digits is 104509440, while the sum is 67.

The square root of 4989549784 is about 70636.7452817583. The cubic root of 4989549784 is about 1708.7838078835.

The spelling of 4989549784 in words is "four billion, nine hundred eighty-nine million, five hundred forty-nine thousand, seven hundred eighty-four".