5538997188 has 96 divisors (see below), whose sum is σ = 15528844800. Its totient is φ = 1700725248.

The previous prime is 5538997183. The next prime is 5538997237. The reversal of 5538997188 is 8817998355.

5538997188 is a `hidden beast` number, since 5 + 538 + 9 + 97 + 1 + 8 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (5538997183) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 54198 + ... + 118386.

It is an arithmetic number, because the mean of its divisors is an integer number (161758800).

Almost surely, 2^5538997188 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 5538997188, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7764422400).

5538997188 is an abundant number, since it is smaller than the sum of its proper divisors (9989847612).

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

5538997188 is a wasteful number, since it uses less digits than its factorization.

5538997188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64266 (or 64258 counting only the distinct ones).

The product of its digits is 21772800, while the sum is 63.

The square root of 5538997188 is about 74424.4394537171. The cubic root of 5538997188 is about 1769.3362751311.

The spelling of 5538997188 in words is "five billion, five hundred thirty-eight million, nine hundred ninety-seven thousand, one hundred eighty-eight".