4856887644 has 144 divisors (see below), whose sum is σ = 13833566208. Its totient is φ = 1319885952.

The previous prime is 4856887639. The next prime is 4856887657. The reversal of 4856887644 is 4467886584.

It is a happy number.

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 47 ways as a sum of consecutive naturals, for example, 2663317 + ... + 2665139.

It is an arithmetic number, because the mean of its divisors is an integer number (96066432).

Almost surely, 2^4856887644 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4856887644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6916783104).

4856887644 is an abundant number, since it is smaller than the sum of its proper divisors (8976678564).

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

4856887644 is a wasteful number, since it uses less digits than its factorization.

4856887644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2064 (or 2055 counting only the distinct ones).

The product of its digits is 41287680, while the sum is 60.

The square root of 4856887644 is about 69691.3742438761. The cubic root of 4856887644 is about 1693.5031896939.

The spelling of 4856887644 in words is "four billion, eight hundred fifty-six million, eight hundred eighty-seven thousand, six hundred forty-four".