8755549638 has 64 divisors (see below), whose sum is σ = 20125082880. Its totient is φ = 2511475200.

The previous prime is 8755549637. The next prime is 8755549651. The reversal of 8755549638 is 8369455578.

8755549638 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8755549637) 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 in 31 ways as a sum of consecutive naturals, for example, 2156106 + ... + 2160162.

It is an arithmetic number, because the mean of its divisors is an integer number (314454420).

Almost surely, 2^8755549638 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8755549638, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10062541440).

8755549638 is an abundant number, since it is smaller than the sum of its proper divisors (11369533242).

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

8755549638 is a wasteful number, since it uses less digits than its factorization.

8755549638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5813.

The product of its digits is 36288000, while the sum is 60.

The square root of 8755549638 is about 93571.0940301544. The cubic root of 8755549638 is about 2061.0782081483.

The spelling of 8755549638 in words is "eight billion, seven hundred fifty-five million, five hundred forty-nine thousand, six hundred thirty-eight".