8779405860 has 192 divisors, whose sum is σ = 27684249600. Its totient is φ = 2309658624.

The previous prime is 8779405849. The next prime is 8779405879. The reversal of 8779405860 is 685049778.

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

It is a junction number, because it is equal to n+sod(n) for n = 8779405797 and 8779405806.

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, 21465336 + ... + 21465744.

It is an arithmetic number, because the mean of its divisors is an integer number (144188800).

Almost surely, 2^8779405860 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 8779405860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13842124800).

8779405860 is an abundant number, since it is smaller than the sum of its proper divisors (18904843740).

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

8779405860 is a wasteful number, since it uses less digits than its factorization.

8779405860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 867 (or 859 counting only the distinct ones).

The product of its (nonzero) digits is 3386880, while the sum is 54.

The square root of 8779405860 is about 93698.4837657472. The cubic root of 8779405860 is about 2062.9484486026.

The spelling of 8779405860 in words is "eight billion, seven hundred seventy-nine million, four hundred five thousand, eight hundred sixty".