8163276780 has 96 divisors (see below), whose sum is σ = 23370955776. Its totient is φ = 2128052736.

The previous prime is 8163276773. The next prime is 8163276881. The reversal of 8163276780 is 876723618.

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, 4671867 + ... + 4673613.

It is an arithmetic number, because the mean of its divisors is an integer number (243447456).

Almost surely, 2^8163276780 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 8163276780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11685477888).

8163276780 is an abundant number, since it is smaller than the sum of its proper divisors (15207678996).

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

8163276780 is a wasteful number, since it uses less digits than its factorization.

8163276780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3463 (or 3461 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 48.

The square root of 8163276780 is about 90350.8537867795. The cubic root of 8163276780 is about 2013.5148668115.

The spelling of 8163276780 in words is "eight billion, one hundred sixty-three million, two hundred seventy-six thousand, seven hundred eighty".