8917991082 has 480 divisors, whose sum is σ = 28048541760. Its totient is φ = 2080391040.

The previous prime is 8917991059. The next prime is 8917991101. The reversal of 8917991082 is 2801997198.

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

It is an unprimeable number.

It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 241026768 + ... + 241026804.

It is an arithmetic number, because the mean of its divisors is an integer number (58434462).

Almost surely, 2^8917991082 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8917991082, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14024270880).

8917991082 is an abundant number, since it is smaller than the sum of its proper divisors (19130550678).

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

8917991082 is a wasteful number, since it uses less digits than its factorization.

8917991082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113 (or 73 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 54.

The square root of 8917991082 is about 94435.1157250310. The cubic root of 8917991082 is about 2073.7465566358.

It can be divided in two parts, 8917 and 991082, that added together give a palindrome (999999).

The spelling of 8917991082 in words is "eight billion, nine hundred seventeen million, nine hundred ninety-one thousand, eighty-two".