4985786489 has 4 divisors (see below), whose sum is σ = 5101735056. Its totient is φ = 4869837924.

The previous prime is 4985786423. The next prime is 4985786527. The reversal of 4985786489 is 9846875894.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4985786489 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4985786089) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57974219 + ... + 57974304.

It is an arithmetic number, because the mean of its divisors is an integer number (1275433764).

Almost surely, 2^4985786489 is an apocalyptic number.

It is an amenable number.

4985786489 is a deficient number, since it is larger than the sum of its proper divisors (115948567).

4985786489 is a wasteful number, since it uses less digits than its factorization.

4985786489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115948566.

The product of its digits is 139345920, while the sum is 68.

The square root of 4985786489 is about 70610.1018905935. The cubic root of 4985786489 is about 1708.3540914255.

The spelling of 4985786489 in words is "four billion, nine hundred eighty-five million, seven hundred eighty-six thousand, four hundred eighty-nine".