8113355880 has 128 divisors (see below), whose sum is σ = 27900737280. Its totient is φ = 1848913920.

The previous prime is 8113355879. The next prime is 8113355891. The reversal of 8113355880 is 885533118.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 268750 + ... + 297410.

It is an arithmetic number, because the mean of its divisors is an integer number (217974510).

Almost surely, 2^8113355880 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 8113355880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13950368640).

8113355880 is an abundant number, since it is smaller than the sum of its proper divisors (19787381400).

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

8113355880 is a wasteful number, since it uses less digits than its factorization.

8113355880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29019 (or 29015 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 42.

The square root of 8113355880 is about 90074.1687721846. The cubic root of 8113355880 is about 2009.4020547558.

Adding to 8113355880 its reverse (885533118), we get a palindrome (8998888998).

The spelling of 8113355880 in words is "eight billion, one hundred thirteen million, three hundred fifty-five thousand, eight hundred eighty".