8817038142 has 64 divisors (see below), whose sum is σ = 19980898560. Its totient is φ = 2569280000.

The previous prime is 8817038137. The next prime is 8817038143. The reversal of 8817038142 is 2418307188.

It is a junction number, because it is equal to n+sod(n) for n = 8817038094 and 8817038103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8817038143) 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, 471238 + ... + 489590.

It is an arithmetic number, because the mean of its divisors is an integer number (312201540).

Almost surely, 2^8817038142 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8817038142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9990449280).

8817038142 is an abundant number, since it is smaller than the sum of its proper divisors (11163860418).

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

8817038142 is a wasteful number, since it uses less digits than its factorization.

8817038142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18649.

The product of its (nonzero) digits is 86016, while the sum is 42.

The square root of 8817038142 is about 93899.0848837197. The cubic root of 8817038142 is about 2065.8918063886.

The spelling of 8817038142 in words is "eight billion, eight hundred seventeen million, thirty-eight thousand, one hundred forty-two".