4881386538 has 128 divisors (see below), whose sum is σ = 12639191040. Its totient is φ = 1367720640.

The previous prime is 4881386527. The next prime is 4881386597. The reversal of 4881386538 is 8356831884.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4925223 + ... + 4926213.

It is an arithmetic number, because the mean of its divisors is an integer number (98743680).

Almost surely, 2^4881386538 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4881386538, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6319595520).

4881386538 is an abundant number, since it is smaller than the sum of its proper divisors (7757804502).

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

4881386538 is a wasteful number, since it uses less digits than its factorization.

4881386538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1249 (or 1243 counting only the distinct ones).

The product of its digits is 4423680, while the sum is 54.

The square root of 4881386538 is about 69866.9201983313. The cubic root of 4881386538 is about 1696.3458462875.

The spelling of 4881386538 in words is "four billion, eight hundred eighty-one million, three hundred eighty-six thousand, five hundred thirty-eight".