8197409792 has 352 divisors, whose sum is σ = 21170237760. Its totient is φ = 3114270720.

The previous prime is 8197409767. The next prime is 8197409807. The reversal of 8197409792 is 2979047918.

It is a tau number, because it is divible by the number of its divisors (352).

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, 92105684 + ... + 92105772.

Almost surely, 2^8197409792 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 8197409792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10585118880).

8197409792 is an abundant number, since it is smaller than the sum of its proper divisors (12972827968).

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

8197409792 is a wasteful number, since it uses less digits than its factorization.

8197409792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187 (or 169 counting only the distinct ones).

The product of its (nonzero) digits is 2286144, while the sum is 56.

The square root of 8197409792 is about 90539.5482206533. The cubic root of 8197409792 is about 2016.3173263822.

The spelling of 8197409792 in words is "eight billion, one hundred ninety-seven million, four hundred nine thousand, seven hundred ninety-two".