8169920704 has 56 divisors (see below), whose sum is σ = 17861286096. Its totient is φ = 3676800000.

The previous prime is 8169920669. The next prime is 8169920711. The reversal of 8169920704 is 4070299618.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13654 + ... + 128554.

Almost surely, 2^8169920704 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 8169920704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8930643048).

8169920704 is an abundant number, since it is smaller than the sum of its proper divisors (9691365392).

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

8169920704 is a wasteful number, since it uses less digits than its factorization.

8169920704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115025 (or 115015 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 46.

The square root of 8169920704 is about 90387.6136647052. The cubic root of 8169920704 is about 2014.0609715391.

The spelling of 8169920704 in words is "eight billion, one hundred sixty-nine million, nine hundred twenty thousand, seven hundred four".